Includes three SmartChlor® cartridges designed for use with the FROG® @ease system in Bullfrog Spas Classic models Ideal for X-Series, R-Series, S/TIL, and pre-2023 A-Series Bullfrog hot tubs Self-regulating cartridges release chlorine only when needed, reducing chlorine use by up to 75% Each cartridge lasts approximately 3–4 weeks under normal usage and automatically flips when empty Helps maintain clear, odor-free water with consistent sanitizer levels and minimal effort Replacing the cartridge is quick and tool-free—simply snap in a new one and drop it into the spa Works in conjunction with the FROG® @ease Mineral Cartridge and compatible in-line holders EPA-registered SmartChlor® formula is gentler on skin, swimsuits, and spa surfaces

Designed specifically for Bullfrog® Spas Classic Series (2013–present), including A, R, X, and STIL models Includes one mineral cartridge, one SmartChlor® cartridge, one Jump Start shock packet, and 30 @ease test strips SmartChlor technology self-regulates chlorine levels, reducing usage by up to 75% compared to traditional systems Mineral cartridge lasts up to 4 months; SmartChlor cartridge lasts 3–4 weeks with normal spa use Maintains consistent chlorine levels (0.5–1 ppm) and delivers clean, clear water with minimal effort Compatible with Bullfrog @ease cartridge holder (sold separately) for a secure, snap-in fit Monthly shock treatment recommended; @ease test strips indicate when to replace cartridges Easy-to-use kit eliminates chemical guesswork—just insert and relax

Designed specifically for Sundance 780/880/980 Series spas (2010+) and compatible with the FROG @ease floating sanitizing system. Each cartridge delivers 3–5 weeks of stabilized, time-released SmartChlor, automatically adjusting output to maintain 0.5–1.0 ppm chlorine. Works in tandem with FROG minerals to reduce total chlorine use by up to 75%, helping preserve swimwear, spa surfaces, and the environment. No daily dosing—simply insert cartridge, flip when “out,” and replace. Test water weekly and shock monthly for optimal sanitization. Includes three gray cartridges—enough sanitizer for an entire season (9–15 weeks).

Designed specifically for Sundance® 780, 880, and 980 Series spas (2010+); installs into the recessed filter holder, not floating in the water. Combines a mineral cartridge (lasting ~3–4 months) and a SmartChlor® cartridge (lasting ~3–4 weeks) to provide continuous dual‑action sanitization. SmartChlor self‑regulates free chlorine levels at 0.5–1.0 ppm, reducing overall chlorine use by up to 75% and eliminating sanitizer “yo‑yo” swings. Included Jump Start shock packet and @ease test strips simplify startup and ongoing water balance checks. Requires only weekly chemical testing and monthly non‑chlorine shocking for hassle‑free maintenance.

Crafted as a powerful, chlorine-free oxygen-based oxidizer, this 2.2 lb spa shock targets organic contaminants like oils, lotions, soaps, and environmental debris to prevent film, odors, and dull water. When used after every use or weekly, it breaks down accumulated contaminants that can strain sanitizer systems and affect water clarity, while also protecting calcium hardness and chlorine levels—so it never increases total hardness or stabilizers. Gentle on spa surfaces, equipment, and seals, it maintains crystal-clear water without harsh chemicals or abrasive effects. Packaged in a resealable 2.2 lb container, it offers excellent value and convenience for regular spa maintenance. Trusted formula from Hot Tub Things—America’s #1 spa chemical brand—is safety-tested and backed by user praise for restoring shine and clarity.

Contains cationic polymeric flocculant that aggregates microscopic contaminants into filter-trappable clumps. Works rapidly—just add 1 oz per 500 gal during filtration for wildly improved clarity within a single 4–6 min circulation cycle. Completely non-foaming and spa-safe, designed to work seamlessly with chlorine, bromine, ozone, salt, or mineral sanitizers. American-made and rigorously tested by Hot Tub Things—the brand trusted for chemical purity, safety, and consistent performance. Promotes healthier water and longer filter life by removing particles before they cloud surfaces or clog plumbing. Compact 16 oz bottle with ~173 positive reviews confirms consistent satisfaction and trustworthy results.

Three FROG® SmartChlor® cartridges designed for use in Jacuzzi® hot tubs using the @ease floating sanitizing system Compatible with J-300, J-400, J-500 (2012+), and many newer Jacuzzi series—check for holder bracket compatibility SmartChlor provides self-regulating chlorine release to consistently maintain 0.5–1.0 ppm free chlorine Reduces total chlorine usage by up to 75% and requires shock only once per month Each cartridge lasts approximately 3–4 weeks before flipping to signal “empty” Helps maintain fresh, clear, odor-free water and is gentle on skin, swimwear, and tub surfaces Replacements are easy: swap the spent cartridge and let it float for hassle-free maintenance Compatible only with FROG® mineral cartridges and @ease floating or inline holders (sold separately)

Custom-engineered for Jacuzzi® J‑300/400/500 Series, this floating system installs directly onto the main filter shell and fits tubs up to 600 gal. Utilizes FROG minerals + SmartChlor® technology to self-regulate chlorine between 0.5–1 ppm, requiring up to 75% less chlorine and avoiding sanitizer spikes or drops. Includes mineral cartridge (blue, ~4 months), SmartChlor cartridge (silver, ~3–4 weeks), Jump Start shock pouch, and @ease test strips for simple water care monitoring. Requires monthly non-chlorine shock (via included Jump Start), weekly testing, and cartridge pins adjusted per spa size. Proven by Jacuzzi® spas and backed by 60-day satisfaction promise—delivers cleaner, clearer, and softer water with minimal effort.

Formulated with powerful, chlorine-free oxygen-based oxidizer, this granulated shock effectively eliminates organic contaminants introduced by bathers, rain, and wind—without raising chlorine or creating combined chlorine. Regular use under the specified dose keeps spa water clean with sparkling clarity, simplifying weekly maintenance and making water easier to balance. Gentle on spa surfaces—won’t affect calcium hardness or stabilizer levels—and compatible with acrylic, seals, equipment, and all sanitizer systems. Packaged in a reusable 1 lb jar with resealable lid, this shock offers convenient, accurate dosing and long shelf life. Trusted Hot Tub Things formula: cleaning-savvy users say, “you’ll wish you’d discovered this product years ago!” for keeping spa water pristine and inviting.

This 5 lb jar contains high-purity sodium dichloro granules, engineered specifically for spa and hot tub use in warm water. Designed to kill algae, bacteria, viruses, and break down organic residues quickly, it delivers a powerful sanitizer action while dissolving completely within minutes—no pre-dissolving necessary. Use in floating dispensers or add directly into the spa with the pump running; targeting 3–5 ppm residual chlorine ensures clean, safe water. The UV-stabilized formula prevents rapid breakdown from sun exposure, maintaining potency even in outdoor spas. Backed by Hot Tub Things’ rigorous safety-testing, this trusted formula surpasses many competitors, offering professional-grade performance at a homeowner-friendly price. A highly reviewed product (over 172 reviews), it's praised for keeping spa water comfortable, odor-free, and visibly sparkling.

Contains high-quality sodium bicarbonate designed to increase both pH and total alkalinity simultaneously in spa water, reducing pH bounce and improving chemical stability. Raises total alkalinity to the preferred range of 80–150 ppm and lifts pH to 7.2–7.8, protecting equipment from corrosion and preventing surface etching. Enhances sanitizer effectiveness—balanced water ensures chlorine or bromine work properly, avoiding cloudy water and reducing odor and eye irritation. Ideal for all spa and hot tub types (chlorine, bromine, salt, mineral, and ozone systems), use after chemical shock or spa refills. Packaged in a convenient 2 lb resealable jar—enough for multiple treatments and easy to store. Expert brand – America’s #1 spa chemical manufacturer, safety-tested, and trusted by spa professionals and consumers alike for reliable water balance.

Designed for spa-specific clear water maintenance, this 32 oz clarifier uses a high-efficiency cationic polymer to bind microscopic particles together into larger aggregates, making them fully filterable. Fast-acting formula restores sparkling clarity within hours, improving both the appearance and feel of water. Compatible with chlorine, bromine, salt, and mineral systems, it integrates seamlessly into regular spa maintenance routines. Each bottle offers ample supply for a full season—using 2 oz per 500 gal. Regular use reduces filter strain and helps maintain optimal water quality during periods of heavy usage. Backed by the Hot Tub Things brand's safety-tested reputation, it's formulated to be spa-safe, non-foaming, and easy to use.

Non-Chlorine Shock: Shock your hot tub periodically with FROG Maintain for Hot Tubs, the recommended non-chlorine shock that pairs and optimizes all FROG hot tub sanitizing systems; single dose works for hot tubs up to 600 gallons Effective Water Maintenance: Add FROG Maintain once a month when using it in combination with the FROG @ease Sanitizing System; for FROG Serene users, add FROG Maintain to the water once a week Compatible with Hot Tub Chemicals: FROG Maintain is a monopersulfate product, and is compatible with other hot tub chemicals (except for biguinides) and water care programs Easy Hot Tub Water Treatment: FROG Maintain for Hot Tubs is prefilled in a packet; cut it open and pour in with no measuring or handling of chemicals; it dissolves quickly, eliminates organic contaminants, and delivers crystal clear hot tub water Water Care Expertise: FROG has more than 25 years of experience making water care easier & keeping pool, hot tub and swim spa water sanitized; FROG's patented Mineral Technology and prefilled cartridges create cleaner, clearer, softer water

Chelating formula suspends metal ions (iron, copper, calcium) that cause staining, scaling, and heater corrosion—protecting spa surfaces and plumbing. Use as a preventive measure during fill-up or to correct existing scale and discoloration; safe for use in hot tubs, jetted tubs, and swim spas. Crafted by America’s #1 spa chemical brand, it’s safety-tested, pure, and formulated specifically for spa use. Easy dosing: Add 16 fl oz during fill or 24 fl oz for heavy metal issues; run pump for thorough circulation. Helps maintain crystal-clear water, efficient heating, and pristine acrylic finish—minimizing equipment wear and cleaning needs.

Contains high-purity sodium dichlor, specifically tailored for spa and hot tub use in warm water environments. Rapidly eliminates algae, bacteria, viruses, and organic contaminants, dissolving fully within minutes—no pre-mixing required. Use in floating feeders or directly into the spa while the pump runs; maintain a 3–5 ppm free chlorine residual for effective sanitation and crystal-clear water. UV-stable formulation retains strength even when used in outdoor spas under the sun. Packaged in a 2 lb resealable jar—compact for easy storage and sufficient for regular maintenance. Highly rated and trusted—known for reliable performance, ease of use, and excellent sanitizer strength in warm water conditions.

Chlorine-free oxidizing formula based on oxygen for powerful yet gentle organic removal. Weekly or after-use treatment targets contaminants like lotions, soaps, sweat, and environmental debris to prevent film and dull water. Balances spa chemistry by eliminating organic matter, making it easier to maintain sanitizer levels and preventing chlorine odor without raising calcium hardness or stabilizer. Gentle on surfaces and spa components—safe for acrylics, seals, equipment, and no abrasive impact. Generous 5‑lb container offers excellent value; typically treat every 1–2 weeks depending on usage. Highly rated by users, praised for restoring spa sparkle and clarity with effortless application.

Precision liquid formula raises spa water calcium hardness efficiently, helping prevent corrosive “hungry” water that can damage heaters, plumbing, and metallic parts. Ideal for weekly use or fresh fills in spas with low or softened water, restoring balance without overshooting to scale-forming levels. Helps minimize foam, cloudiness, and sanitizer demand by maintaining stable hardness—essential for optimal sanitizer effectiveness. Compatible with all hot tub sanitizer types—including chlorine, bromine, saltwater, and mineral systems—simplifying your chemical routine. Convenient 32 oz bottle with marked dosing lines makes it easy to add precise amounts based on spa volume. Backed by Hot Tub Things’ quality assurance, safety-tested for spa use and formulated without harsh fillers—trusted by professionals and DIYers.

Quick foam elimination: Just a capful in circulating spa water instantly disrupts and removes unsightly foam caused by lotions, soaps, detergents, and organic debris. Pure chemistry, spa-safe: Made with the purest hot tub–grade ingredients, this defoamer is non-silicone and won’t harm acrylic, vinyl, jets, or plumbing systems. Trusted & tested: Backed by Hot Tub Things—America’s #1 spa chemical brand—and safety-tested for quality and performance. Preventive & proactive: Use anytime foam appears during cleanup, especially after shampoo, guest usage, or aromatherapy sessions. Easy application: Shake well, pour one capful onto the water surface while jets are running, wait 30 minutes—and foam disappears. Repeat once more if needed, then clean filters for peak results.

Concentrated cartridge-cleaning formula engineered to lift oils, lotions, soaps, and grease from pleated spa filters, restoring their original filtering power. Ideal for a deep soak—simply submerge the filter in cleaner and water overnight for maximum ease and effectiveness. Contains powerful emulsifiers and wetting agents that break down organic buildup without harsh abrasives. Compatible with chlorine, bromine, ozone, salt, and mineral sanitizing systems, making it safe for all spa types. Regular use helps improve circulation efficiency and reduces strain on the pump and heater components. Helps control bacterial growth by removing contaminants that can harbor microbes, supporting healthier spa water. Made by Hot Tub Things—America’s #1 trusted spa chemical brand—formulated specifically for spa filters. Convenient dime-sized bottle (8.82″ × 3.19″ × 3.11″, 2.23 lb) fits easily into maintenance kits and storage areas.

Sundance/Jacuzzi CLEARRAY® XL Replacement Bulb (part # 6472‑841) is a factory-engineered UV‑C sanitizer bulb designed for optimal spa water purification in modern hot tubs (2012–present): OEM-certified part, directly from Sundance/Jacuzzi—formerly part 6472‑857 “XL” design offers 20% larger surface area with enhanced connection port; backward compatible with earlier models 7 W UV‑C output treats 99.9% of waterborne pathogens without chemical by-products Dimensions: ~9.69 × 2.2 × 2.13 in; Weight: ~0.29 lb (4.6 oz) Includes latex glove—prevents oils from degrading quartz glass Replace annually and reset your spa’s “blb/Replace CLEARRAY” alert

Spray-on Instant Cartridge Cleaner dissolves stubborn oils, lotions, grease, and mineral buildup from pleated cartridge filters—no soaking, scrubbing, or buckets required. Scientifically engineered to match traditional soak cleaners: “just spray on and rinse off” delivers sparkling clean filters in 5 minutes—perfect for spring cleaning or seasonal resets. Safety-tested by Hot Tub Things (America’s #1 spa chemical brand), it’s fully compatible with chlorine, bromine, ozone, and salt sanitizers—protecting spa water chemistry. Regular use helps prolong filter lifespan, reduce pump energy costs, and maintain strong water flow and clarity between deep cleans. Comes in a convenient 32 oz spray bottle with a cleaning cycle recommended every 4–6 weeks, or before each refill—keeping your spa ready for peak performance.

Raises both pH and total alkalinity to ideal levels for spa water stability and comfort. Prevents corrosion of spa components and extends the life of heaters, jets, and plumbing. Helps maintain sanitizer efficiency by keeping water within the proper chemical range. Fast-dissolving granular formula for easy and precise dosing. Safe for use with all types of sanitizers, including chlorine, bromine, saltwater, and mineral systems. Reduces cloudy water and skin/eye irritation caused by low pH or unbalanced water. Packaged in a 1 lb resealable container with clear dosing instructions. Made in the USA and trusted by spa owners and professionals alike.

Made from high-purity sodium dichloro granules that dissolve rapidly in warm spa water to maintain a sanitizer level of 3–5 ppm for optimal disinfection. Acts as both a sanitizer and oxidizer, killing bacteria, algae, and viruses while breaking down organic contaminants. Convenient direct application: add roughly ½ oz per 500 gal of spa water while the pump runs; adjust dose frequency based on usage—daily for heavy use, weekly for moderate use. Suitable for floating dispensers or manual dosing; no need for pre-dissolving, saving time and effort. UV-stabilized to maintain strength even when spa is uncovered, ensuring consistent performance. Compatible with chlorine, bromine, saltwater, and mineral systems for flexible spa care routines. Packaged in a resealable high-density polyethylene jar to maintain freshness and purity over time. Backed by Hot Tub Things’ trusted, safety-tested formula designed specifically for spa applications.

Compatible with FROG @ease Systems: FROG @ease Test Strips are only compatible with FROG @ease sanitizing systems; works for both hot tubs and swim spas Unique SmartChlor Test Kit: FROG @ease Test Strips are specially designed to test for SmartChlor and are much easier to use than other test strips; one color match shows when the FROG @ease SmartChlor Cartridge needs to be replaced Test Strips for Home Spa: In seconds, you can know whether your Total Alkalinity, pH, and Total Hardness are within ideal guidelines; dip the test strip, remove, and hold it next to the color chart Essential FROG @ease Test Kit: Each bottle contains 30 test strips; recommended to test at least once per week to ensure water is properly balanced Water Care Expertise: FROG has more than 25 years of experience making water care easier & keeping pool, hot tub and swim spa water sanitized; FROG’s patented Mineral Technology and prefilled cartridges create cleaner, clearer, softer water that’s no mess, no guess and no stress