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Hot Tub Things Chlorinating Granules (1 lb) Hot Tub Things Chlorinating Granules (1 lb)
Hot Tub Things™ Hot Tub Things Chlorinating Granules (1 lb) $16.00
BACTERIA AT BAY: Say goodbye to bacteria and say hello to clean water! TOP BRAND: Hot tub things is America’s #1 Trusted Brand of Hot Tub Chemicals. GUARANTEED PERFORMANCE: Safety Tested to Assure Quality, Guaranteed Performance. PUREST CHEMICALS AVAILABLE: Formulated Exclusively for Hot Tubs And Made from the Purest Chemicals Available. Choosing a good sanitizer, Hot Tub Things Chlorinating Granules, for your hot tub can be confusing—there are so many options on the market! Chlorine remains the most popular choice for first time hot tub and swimming pool owners. Why not start off with great quality products? Compare to the quality of SpaGuard Chlorinating Concentrate, Hot Tub Things reigns superior! When used as directed, chlorinating granules are effective as a spa and hot tub water disinfecting agent. Chlorine dissolves quickly in water. We’ve formulated ours to perform well in warm spa water. Chlorine kills algae, bacteria, viruses, and other microbes before they can make you sick. Chlorine evaporates fairly quickly, so make sure to test your water regularly. Chlorine vs. Bromine: Fast-acting, quick-dissolving Easy to use, no pre-dissolving needed Acts as a sanitizer and an oxidizer; no need for two products Apply directly to water while the pump is running Using chlorine: Use: Use 1/2 ounce of this product per 500 gallons of water. May be needed on a nightly basis in a heavily used spa or as infrequently as once a week in a moderately used spa. Check levels of chlorine using your standard Chlorine test strips (ex. Leisure Time test strips). Keep a residual of 3-5 ppm of available chlorine for optimal hot tub balance.
FROG® @ease® SmartChlor® Refills for Bullfrog® Spas FROG® @ease® SmartChlor® Refills for Bullfrog® Spas
Bullfrog Spas® FROG® @ease® SmartChlor® Refills for Bullfrog® Spas $53.95
Keep your Bullfrog Spa clean, clear, fresh, and safe with the innovative mineral sanitizer system designed specifically for your hot tub! Time-release chlorine means stable water chemistry. Frog @ease is the manufacturer-recommended sanitizer for 2019 Bullfrog Spas. Use less chlorine with Frog minerals. Each SmartChlor cartridge lasts for up to five weeks. Most Bullfrog spas after 2013 can be upgraded to use Frog @Ease. Spa Frog is the leading designer of mineral sanitizing systems. The FROG® @ease® System for Bullfrog® Spas (by King Technology) for Bullfrog Spas is the manufacturer-recommended method of keeping your hot tub free of germs and algae. Upgrade your spa with ease. Bullfrog Spas prior to 2019 require a one-time purchase of the frog cartridge holder. When the amount of SmartChlor (silver cartridge) is depleted, replacing it is so simple by purchasing the Smartchlor 3-pack refills. [embed]https://www.youtube.com/watch?v=9YvBckKQTBA[/embed] Ever Wonder why your spa water is cloudy like a foggy morning? Might be the sanitizer you were using before. Most sanitizers contain cyanuric acid. What is cyanuric acid? This is an ingredient found in many chlorine products that help protect the chlorine from being burned off by the sun. Think of it as sunscreen for your chlorine.  The problem is hot tubs are rarely ever left out in direct sunlight for hours at a time so there is no need to have cyanuric acid (CYA) in hot tub water. Why does cyanuric acid cause problems? When cyanuric acid (CYA) builds up, it actually makes chlorine less effective. When that happens the chlorine can’t keep up and you start to experience cloudy water with smelly odors and end up spending more time and money trying to keep the water clean and clear. How can I keep cyanuric acid out of my hot tub? That’s the easy part. FROG® @ease® is an innovative water care system that has 0% CYA.  It’s unique SmartChlor® Technology is self-regulating so it goes to work automatically whenever you need sanitizing protection.  With zero CYA, your water will stay cleaner, longer. Learn More
FROG @ease SmartChlor Cartridge 3-pack for Bullfrog Spas FROG @ease SmartChlor Cartridge 3-pack for Bullfrog Spas
Bullfrog Spas® FROG @ease SmartChlor Cartridge 3-pack for Bullfrog Spas $53.95
The Latest Upgrade Designed for Bullfrog Keep your Bullfrog Spa clean, sparkling, and safe by sanitizing your water with Spa Frog @ease. Designed by King Technology with the full cooperation of Bullfrog Spas, the @Ease smartchlor replacement 3 pack fits your tub and fits your busy life. If you have a 2019 or newer Bullfrog hot tub, the @Ease sanitizing system is the manufacturer-recommended method of keeping your water free of germs and algae. The mineral system lasts up to four months, while the replaceable SmartChlor chlorine cartridges provide up to five weeks of consistent and easy sanitation. You will use less chlorine because of the natural copper and silver ions of Frog's mineral cartridge. With Frog @ease, you only need to shock your hot tub once per month. An easy way to remember this step is to add a packet of Frog Maintain Shock every time you replace a SmartChlor cartridge. The @Ease SmartChlor replacement 3-pack for Bullfrog Spas is the manufacturer-recommended method of keeping your hot tub free of germs and algae. Upgrade your spa with ease. Bullfrog Spas prior to 2019 require a one-time purchase of the frog cartridge holder. We would be happy to talk to you if you have questions about whether your tub can upgrade to Frog @ease for Bullfrog spas. Give us a call during California business hours. We also carry a full line of Bullfrog replacement headrests and pillows to keep your spa looking its very best.
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6455-007 | jacuzzi® J-300 Collection (2002-2006) 6455-007 | jacuzzi® J-300 Collection (2002-2006)
Jacuzzi® Hot Tubs 6455-007 | jacuzzi® J-300 Collection (2002-2006) $21.44
Jacuzzi Pillow Insert 6455-007 for non-lit (lighting) systems OEM part #6455-007 For Jacuzzi 300 Series (2002+) The Jacuzzi Pillow Insert 6455-007 is compatible with: J-385 / J-380 (2002-2003, 2004-2006) J-375 / J-370 (2002-2003, 2004-2006) J-365 / J-360 (2002-2003, 2004-2006) J-355 / J-350 (2002-2003, 2004-2006) J-345 / J-340 (2002-2003, 2004-2006) J-335 / J-330 (2002-2003, 2004-2006) J-325 / J-320 (2002-2003, 2004-2006) J-315 / J-310 (2002-2003, 2004-2006) The pillow backing portion is sold separately: part #2455-105 . Pillows (even inserts like the Jacuzzi Pillow Insert 6455-007) can last you a few weeks up to a few months. What's the secret you ask? Maintenance and care. We offer great products that can enhance the appearance of the pillows. Not only enhance the beauty and increase the value of the spa, but extend the longevity of the pillow. We want you to enjoy your spa so things will happen and your pillow will get dirty. Not to worry! Purchase our Pillow & Cover cleaner - popular to all owners, especially in the San Francisco Bay Area. Be sure to add it to your cart! Benefits: The quick and easy way to clean hot tub pillows America’s #1 Trusted Brand of Hot Tub Chemicals Safety Tested to Assure Quality, Guaranteed Performance Formulated Exclusively for Hot Tubs not to cause excess foam the way soap can Alcohol-free formula will not cause pillows to dry or crack
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2540-383J | Jacuzzi® ProClear™ II 75sqft Filter Cartridge 2540-383J | Jacuzzi® ProClear™ II 75sqft Filter Cartridge
Jacuzzi® Hot Tubs 2540-383J | Jacuzzi® ProClear™ II 75sqft Filter Cartridge $59.95
Jacuzzi part 2540-383J 19” tall, 6” diameter, 2.38” hole Genuine Jacuzzi quality 75sqft filtration material to protect your spa’s machinery from particles and debris See compatibility list below Keep your internal pipes and pumps clean and clear. This genuine Jacuzzi circulation pump cartridge filter screens and cleans water before it heads back into your heater and ozonator machinery. This filter is only for specific Jacuzzi J-400 models made between 2006 and 2011. It does not fit modern J-400 hot tubs.
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303® Multi-Surface Cleaner (16 oz)
303® 303® Multi-Surface Cleaner (16 oz) $18.95
303 Multi-Surface Cleaner is safe to use on a variety of surfaces, such as: Fabrics: 303 Multi-Surface Cleaner works on all water-safe fabrics and designed to clean even the most delicate fabrics Stainless Steel and Chrome: After a family outing, clean up food and drink marks from your boat’s interior and galley. Vinyl, Rubber and Plastics: Use on your boat or spa cover to remove dirt or water marks, perfect before sealing with 303 Aerospace Protectant. Metal, Aluminum, and Wicker: Take extra care of your furniture. 303 Multi-Surface Cleaner unique formula will rinse residue free. Safe for all types of upholstery and vinyl, the marine version of 303® Multi-Surface delivers robust cleaning agents designed to counteract the damaging conditions of sea and sand. Watch soaked-in stains disappear within minutes and discolored surfaces come back to life. When coupled with 303® Marine Fabric Guard, your covers will stay clean and protected for months. Ultimate cleaning power No greasy residue Safely brightens and rejuvenates surface Leaves surfaces looking new every time Usage Directions: Spray on spot until wet. Agitate with a medium-soft brush or wet cloth. Wipe up stain and excess cleaner with a damp cloth, rinsing out cloth in clean water as necessary. Let fabric dry. For heavier soils, increase agitation and soak time. Repeat if necessary. For mildew and special cleaning problems on fabrics, contact the fabric manufacturer.
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10-00417 | Bullfrog® Spas Core Cage Filter Adapter (2017 - Present) 10-00417 | Bullfrog® Spas Core Cage Filter Adapter (2017 - Present)
Bullfrog Spas® 10-00417 | Bullfrog® Spas Core Cage Filter Adapter (2017 - Present) $35.50
Upgrade your Bullfrog Spa to use modern Wellspring/Bullfrog brand filters. Upgrade your spa with ease. Bullfrog Spas prior to 2017 require a one-time purchase of this easy-to-install filter adapter. No tools or hassle required. Just put this plastic core inside your new 10-00281 filter or 10-00282 filter. This filter adapter is a durable part that should last you for several years as you replace your hot tub filters. Part # 10-00417 is a genuine Bullfrog part, so you know it was designed with your spa in mind. Modern filtration media trap dirt, pollen, and microbes while allowing clear water to pass through. Use less chlorine with modern filtration.
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SilkBalance Clean Start - Plumbing Line Cleaner SilkBalance Clean Start - Plumbing Line Cleaner
SilkBalance™ SilkBalance Clean Start - Plumbing Line Cleaner $24.99
How to use SilkBalance Clean Start? [embed]https://www.youtube.com/watch?v=6UWtrMuBmxc&list=PLQcvwFr8vOtJ9Lbedm3NhIn7qYA5pqTQW[/embed]
303® Marine Fabric Guard (16 oz)
303® 303® Marine Fabric Guard (16 oz) $22.95
Restores lost water and stain repellency to factory new levels Provides strong resistance against soiling Protects against water-based and oil-based stains Does not alter fabric color, feel, flammability or breathability Safe for the synthetic or natural fibers 303 Fabric Guard is the only product recommended by and for Sunbrella, as well as other fabric manufacturers to restore lost water repellency to fabrics. Resist water, even when you’re on the water. 303 Fabric Guard creates a powerful shield to greatly increase repellency and protect against oil and water- based stains. Spray it on outdoor leather seats, boat covers, awnings, Dacron sails and more! When applied to clean and dry fabrics, 303 Fabric Guard restores lost water and stain repellency to straight-from-the-factory levels. Keep all your favorite fabrics crisp and clean for years to come. Usage Directions: Product liquid and spray are flammable, keep product and treated article (until dry) away from heat, sparks or open flames. Do not smoke when applying 303® Fabric Guard. Spray until evenly wet, overlapping sprayed areas. NOTE: Reduced coverage when applied with paint roller or brush. Apply to fabric above 70°F/21°C. (For quicker drying/curing and best results, apply in full sun.) Treated material must be protected from rain/dew until completely cured. CURING: 12-24 hours dependent on temperature. If these steps are performed correctly, the material will be water repellent at this point. 303® Fabric Guard will need reapplication depending on fabric exposure to sunlight and weather conditions; pour water on fabric to determine need to retreat fabric. COVERAGE: 40-75 sq. ft (3.7–7 sq. m) per 16fl.oz (473ml) depending on material and application method.
6541-468S | Sundance® 680™ Pleated Filter 6541-468S | Sundance® 680™ Pleated Filter
Sundance® Spas 6541-468S | Sundance® 680™ Pleated Filter $55.95
Compatibility Alicia (late 03/2023+) Edison (late 03/2023+) McKinley (late 03/2023+) Prado (late 03/2023+) Peyton (late 03/2023+) Ramona (late 03/2023+)
FROG @ease Sanitizing System for Jacuzzi® Hot Tubs FROG @ease Sanitizing System for Jacuzzi® Hot Tubs
Jacuzzi® Hot Tubs FROG @ease Sanitizing System for Jacuzzi® Hot Tubs $56.95
Time-release chlorine means stable water chemistry. Use less chlorine with Frog minerals. The @Ease system for Jacuzzi hot tubs is the manufacturer-recommended method of keeping your hot tub free of germs and algae. Upgrade your spa with ease. Jacuzzi hot tubs prior to 2021 require a one-time purchase of the Frog cartridge holder.  
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2540-387J | Jacuzzi Proclear II Filter 2540-387J | Jacuzzi Proclear II Filter
Jacuzzi® Hot Tubs 2540-387J | Jacuzzi Proclear II Filter $37.95
GENUINE JACUZZI QUALITY | This filter is made by Jacuzzi, the same company that made your hot tub SPECIALIZED FILTRATION | Designed by Jacuzzi specifically for J-400 series hot tub J-400 Series Spa Filter Cartridge Height: 12.5" Diameter: 4.75" Hole: 2.375"
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60-1356 | STIL Series Filter Snapcap Assembly (2015-Present) 60-1356 | STIL Series Filter Snapcap Assembly (2015-Present)
Bullfrog Spas® 60-1356 | STIL Series Filter Snapcap Assembly (2015-Present) $68.50
Replacement SnapCap with clips assembled Color: Gray
10-00814 | Simplicity™ Flat Filters 10-00814 | Simplicity™ Flat Filters
Bullfrog Spas® 10-00814 | Simplicity™ Flat Filters $78.50
No more soaking or spraying out your dirty filters. When it’s time just swap it out for a new one and enjoy clean crystal clear water. Replaces old part #40-00843 Package of 4 filters. Simplicity™ filters for M Series spas offer a revolutionary flat, plastic-free, filter design that uses 100% of available media for improved performance, convenience, & cost savings. No more soaking or spraying out your dirty filters. When it’s time just swap it out for a new one and enjoy clean crystal clear water. Package of 4 filters.
Hot Tub Things Oxidizing Spa Shock (1 lb) Hot Tub Things Oxidizing Spa Shock (1 lb)
Hot Tub Things™ Hot Tub Things Oxidizing Spa Shock (1 lb) $19.00
BY ORGANIC BUILD UP!: Use shock weekly to control and prevent organic buildup that causes cloudy water! TOP BRAND: Hot tub things is America’s #1 Trusted Brand of Hot Tub Chemicals GUARANTEED PERFORMANCE: Safety Tested to Assure Quality, Guaranteed Performance PUREST CHEMICALS!: Formulated Exclusively for Hot Tubs And Made from the Purest Chemicals Available Use shock weekly to control and prevent organic buildup that causes cloudy water.Oxidizing Spa Shock is a powerful oxygen-based oxidizer. When used regularly, this product will help eliminate contaminants introduced by bathers and environmental factors like rain and wind. Our chlorine-free formula restores sparkle and clarity to your hot tub water without raising chlorine levels or producing combined chlorine. This product is gentle on spa surfaces. This product restores sparkle and clarity to spa water. It will not increase calcium hardness or stabilizer levels. This product contains no chlorine or other disinfectants. Use: This product contains no bromine or other sanitizer and should be used for oxidizer treatment only. Regular use of this product will remove most of the contaminants that accumulate in spa water. Your water will be easier to balance and maintain, but you will still need to use a modest amount of bromine, chlorine, or ozone-based sanitizer. When to Use: Add this product to spa water after every use, or once per week if the spa is not being used. A Hot Tub Things Original: Our chlorine-free formula restores sparkle and clarity to your hot tub water. Use Hot Tub Things Oxidizing Spa Shock after every use to maintain clear water. Once you get into the habit of shocking your hot tub regularly, you’ll wish you had discovered this product years ago!
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373045J | Jacuzzi J-200 50 Sq/Ft Filter 373045J | Jacuzzi J-200 50 Sq/Ft Filter
Jacuzzi® Hot Tubs 373045J | Jacuzzi J-200 50 Sq/Ft Filter $38.95
Compatible filters: Jacuzzi 373045J Sundance 6540-471 Pleatco PRB50-IN Waterway 817-5000 Compatibility: Denali 2006+ Burlington 2006-2007 J-210 models 2005+ J-220 models 2005-2008 J-230 models 2005-2007 J235 & J245 from 2012+
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SpaGuard Brominating Concentrate (6 lb) SpaGuard Brominating Concentrate (6 lb)
SpaGuard® SpaGuard Brominating Concentrate (6 lb) $77.99
The SpaGuard Brominating Concentrate 6 lb: One-step, fast-dissolving brominating granules have no chlorine odor Dual-acting as both a sanitizer and oxidizer, eliminates need for two products Easy to use, no pre-dissolving needed Apply directly to water while the pump is running Killing bacteria is key to spa maintenance In a spa, sanitizers are added to control the growth of bacteria and algae. The warm water environment of the spa is conducive to growth, making sanitization essential to having a clean spa that is suitable for bathers. Although the chemical reactions that occur to sanitize a spa are the same as in a pool, the reactions in a spa happen at a much faster rate. Chemicals become more reactive and tend to be used up more quickly than in a pool, requiring frequent chemical additions to maintain proper sanitizer residuals. Purchase your SpaGuard Brominating Concentrate 6 lb today and watch the magic work.
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Pool Complete® Weekly (3 L)
BioGuard Pool Complete® Weekly (3 L) $64.99
Pool Complete® Weekly is the perfect complement to the BioGuard 3-Step System as it raises pool care to the next level by enhancing the visual look of pools in ways no other single product can. Pool Complete® Weekly uses a proprietary blend of targeted enzymes, clarifiers and a phosphate remover to elevate your pool care routine and keep your water in peak condition. It actively works in the background to remove unseen contaminants and improve filtration, which frees your 3-Step products to focus on what they do best as well. We've got to say it again cause it's just that amazing - This proprietary, 3-in-1 high-intensity weekly formula will: Keeps water AMAZINGLY clear Prevents waterline buildup Removes phosphates Loving Pool Complete? Introducing the newest product from Bioguard® to the Pool Complete® family: Pool Complete® 911. Clear cloudy water with this instant water rescue treatment - contains powerful enzymes and high-powered clarifiers to quickly eliminate those unwanted conditions, with significant results in just 24 hours.   [embed]https://youtu.be/jy_iZZ9ECl4[/embed]   How much should I use? One capful (4 oz.) per 10,000 gallons per week will create a noticeably better-looking pool! Why take the additional step of an enhances? Your pool is your investment. Having beautiful, sparkling clean water allows you to enjoy spending time in your pool. Enhancers bring out the beauty in your water and keep your filter working at maximum efficiency so you have more time in the pool instead of outside of it.
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Pool Complete® 911 (2 l)
BioGuard Pool Complete® 911 (2 l) $32.99
Introducing the newest product from Bioguard® to the Pool Complete® family: Pool Complete® 911. Clear cloudy water with this instant water rescue treatment - contains powerful enzymes and high-powered clarifiers to quickly eliminate those unwanted conditions, with significant results in just 24 hours. The enzymes break down non-living organic waste such as oils, pollen, sunscreen, bather waste, hair care products, and more. Meanwhile, the clarifiers help gather and move the contaminants to the filter, where they can be removed from the water system. It adds the final touch to any pool care program to ensure your water is clearly at its sparkling best. We think pool and spa care should be easy, and with the 3-step program, it's as easy as 1 2 & 3! Keep your water sparkling clear all season long by following 3 easy steps. Sanitizers to clean water Shock to remove contaminants Algae killing and prevention Now the premier product for spring openings! Outperforms Pool Opening Complete™ when used for clearing cloudy water. Give Pool Complete® 911 a shot today! Loving Pool Complete? Be sure to check out the 3-in-1 high intensity formula, Pool Complete® Weekly. [embed]https://youtu.be/jy_iZZ9ECl4[/embed]
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Pool Closing Complete™ (2 L)
BioGuard Pool Closing Complete™ (2 L) $44.99
Pool Closing Complete® protects your pool in the off season during cooler winter temperatures with anti-corrosion and anti-scale properties - not to mention it adds water line protection. Who wants to open up their spa or pool just to see grime and scum buildup on the water line? Gross! Did we mention it saves time when all you want to do is jump into the water when the temperatures start going up? Maybe you just need a dip? Don't lose that thrill and save your valuable time at opening. Pool Closing Complete® works well with all sanitizers: chlorine, bromine, and saltwater. Take care of your water all year long! Off season products are designed for a reason. Pool Closing Complete® is designed to care for your pool or spa during the months where your pool is not being used. When it's time to jump in, your water will be prepped and ready. Why go through the hassle of closing your pool? Closing your pool makes maintenance easy during the off months and keeps things under control until you are ready to open it. Closing your pool properly means an easier spring opening that can help save effort, time and money! Yes, closing your pool isn't as fun as opening - let's talk about opening. The Pool Complete® family adds the final touch to any pool care program to ensure your water is clearly at its sparkling best. Pool Complete® Weekly uses a proprietary blend of targeted enzymes, clarifiers and a phosphate remover to elevate your pool care routine and keep your water in peak condition. It actively works in the background to remove unseen contaminants and improve filtration, which frees your 3-Step products to focus on what they do best as well. If conditions need a little (or a lot) more power, Pool Complete® 911​ is an instant rescue treatment that delivers results in mere hours. Whether it’s during spring opening, pollen outbreaks or an algae cleanup, 911 is the perfect choice to quickly get great-looking, crystal-clear water ready for swimming and your enjoyment. Pool Complete is not just the final touch, it may be the best thing you can do for your pool!
2472-007 | Jacuzzi J-400 pillow (J445/J435/J475/J485) 2472-007 | Jacuzzi J-400 pillow (J445/J435/J475/J485)
Jacuzzi® Hot Tubs 2472-007 | Jacuzzi J-400 pillow (J445/J435/J475/J485) $45.95
OEM Jacuzzi® replacement headrest pillow Jacuzzi part #2472-007 (replaces old part #6455-031)
2540-381J | Jacuzzi® J-200™ 95 sq. ft. Filter 2540-381J | Jacuzzi® J-200™ 95 sq. ft. Filter
Jacuzzi® Hot Tubs 2540-381J | Jacuzzi® J-200™ 95 sq. ft. Filter $61.95
GENUINE | Enjoy the peace of mind that comes from Jacuzzi quality water filters EFFECTIVE | Woven filtration protects your water, your family, and your equipment from harmful dirt and particles DURABLE | The 2540-381J filter can withstand repeated washing and rinsing with an approved cartridge cleaner (sold separately), so you can get maximum life out of your purchase ECONOMICAL | Replace the filter regularly to protect the pumps and plumbing of your hot tub
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2540-389 | Jacuzzi ProPolish Filter Bag 2540-389 | Jacuzzi ProPolish Filter Bag
Jacuzzi® Hot Tubs 2540-389 | Jacuzzi ProPolish Filter Bag $28.14
Jacuzzi replacement filter bag, part #2540-389, for J-400 series hot tubs. This ProPolish filter bag works alongside your 2540-387J filter or your 2540-384 filter. It screens out twigs, grass, bugs, flower petals, and other large particles before they get to your filter cartridges. This bag is a durable part that you should rinse and clean for several seasons of use. With careful cleaning and care, this filter bag will last for up to two years. As a factory-authorized Jacuzzi dealer, we offer a full manufacturer's warranty on all parts. However, filters, including this filtration bag, are designed to get dirty and (eventually) clogged during normal use. This normal wear and tear is not covered by any warranty. An essential part of the filtration system for J-400 series Jacuzzi hot tubs. The Jacuzzi 2540-389 ProPolish filter bag catches larger particles such as bugs and seeds before they get to your filter cartridge. Most Jacuzzi J-400 hot tubs come with this filter bag as part of their initial set of filters. This Jacuzzi replacement filter bag can be rinsed, washed, and reused multiple times. Eventually, it may become so dirty or so frayed that replacing it becomes necessary. This part should be hand-washed in dish soap and triple-rinsed before reuse. Do not use Cartridge Cleaner or Instant Cartridge Cleaner on this product. Please note that this is NOT the debris attachment bag that goes inside the filter grille on many Jacuzzi models. This bag is much smaller and has a rigid plastic ring. The outer ring measures 6" in diameter. The inner diameter is 4 1/2" .