
Hot Tub Things
Hot Tub Things® pH & Alkalinity Up – 1 lb Spa Water Balancer
$12.50
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.

Hot Tub Things
Hot Tub Things pH & Alkalinity Down – 1.25 lb Granular Sp...
$24.50
Specially designed granular blend to reduce elevated pH and total alkalinity simultaneously—ideal for water above 7.8 pH or 150 ppm alkalinity.
Helps prevent scale buildup, protect heaters and pumps, eliminate cloudy water, and reduce skin and eye irritation by stabilizing chemical balance.
Packed with high-purity ingredients and safety-tested by Hot Tub Things, ensuring consistent performance and spa safety.
Granular form allows precision dosing—just add recommended dose based on test results, run pump for 15–20 minutes, then wait 2 hours before retesting; adjust as needed.
Convenient 1.25 lb resealable bag provides multiple treatments—perfect for season-long spa water care.

Bullfrog Spas and FROG
FROG® @ease Sanitizing System for Bullfrog® Spas – Simpli...
$56.95
Designed exclusively for Bullfrog® Spas with the Simplicity™ control system (2019 and newer)
Includes pre-filled SmartChlor® and mineral cartridges for low-maintenance water care
Self-regulating chlorine delivery maintains a consistent sanitizing level with less monitoring
No measuring or daily dosing—simply snap in cartridges and relax
Up to 75% less chlorine use compared to traditional systems, with no fading, odors, or skin irritation
Mineral cartridge lasts up to 4 months; SmartChlor® cartridge lasts 3–4 weeks
Cartridges insert directly into the in-line housing built into the spa
Leaves water silky smooth, with fewer chemicals and less effort

FROG
Frog® @ease Floating SmartChlor Sanitizing System for Hot...
$57.95
Complete floating sanitizing system that combines FROG® minerals and SmartChlor® technology for hands-off water care
Includes one SmartChlor cartridge, one mineral cartridge, one Jump Start shock packet, and 30 @ease test strips
Designed to float in the spa water at an angle, flipping over when the SmartChlor cartridge is empty
Ideal for hot tubs up to 600 gallons, maintaining consistent free chlorine levels with up to 75% less chlorine
Cartridges are easy to snap together and replace—SmartChlor lasts 3–4 weeks; mineral lasts up to 4 months
Helps maintain silky soft, crystal-clear water while reducing chemical odor and surface damage
Shock treatment is only required once a month using the included Jump Start packet
Durable construction stands up to spa chemicals and daily use with no tools or daily maintenance needed

FROG
FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Re...
$70.99
Chlorine Start-Up Shock: Shock your freshly filled hot tub with FROG Jump Start and establish an initial chlorine level while removing organic components; single dose treats hot tubs up to 600 gallons
Effective Water Sanitization: Add FROG Jump Start after filling your hot tub to establish a baseline chlorine level; optimizes the performance of all FROG hot tub sanitizing systems
Compatible with Hot Tub Chemicals: FROG Jump Start is a dichlor product, and is compatible with other hot tub chemicals (except for biguinides) and water care programs
Convenient Hot Tub Water Treatment: FROG Jump Start is prefilled in a packet; cut it open and pour in with no measuring or handling of chemicals; quickly dissolves with a fizzing action to ensure effective sanitization
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

FROG
FROG® @ease SmartChlor Cartridge 3-Pack – Hot Tub Floatin...
$54.95
Includes three replacement SmartChlor® cartridges designed for use with the FROG® @ease Floating Sanitizing System.
Each cartridge lasts 3–4 weeks, giving you 3–4 months of worry-free water care in one convenient package.
SmartChlor Technology self-regulates chlorine levels, releasing only what’s needed when it’s needed.
Reduces chlorine usage by up to 75% compared to standard spa chlorine methods, minimizing odors and skin/eye irritation.
Designed for spas up to 600 gallons; not intended for use with swim spas or in-line systems.
When the floating system flips over, it signals time to replace the empty cartridge—no guesswork.
Works in tandem with the FROG® mineral cartridge to maintain clean, balanced water.
Quick-snap design makes replacements fast and tool-free—ideal for busy spa owners.

Hot Tub Things
Hot Tub Things® Bromine Tablets – 5 lb Spa & Hot Tub Sani...
$69.00
Hot Tub Things® Bromine Tablets are formulated to sanitize and disinfect hot tub and spa water effectively.
Each tablet dissolves slowly, providing consistent sanitization that helps prevent bacteria and algae growth.
Bromine is less harsh on skin and eyes than chlorine and maintains stable disinfection even at higher water temperatures.
These tablets are designed for use in spa floaters or automatic feeders, ensuring easy and convenient application.
Using bromine reduces strong chemical odors, leaving water feeling fresher and more comfortable.
A 5 lb container provides a long-lasting supply, making it a cost-effective choice for regular spa maintenance.

Hot Tub Things
Hot Tub Things Pillow & Cover Cleaner – 32 fl oz Foam‑Fre...
$15.95
Gentle, foam-free formula engineered for spa pillows and headrests—lifts oils, dirt, and makeup without harsh chemicals that can crack surfaces or cause excessive foam.
Alcohol-free to preserve the natural rubber and vinyl surfaces of pillows, preventing premature drying and cracking.
Ideal for use on spa and swim spa covers, pool furniture, patio cushions, and more—one product across all accessory surfaces.
Quick and easy application: spray onto cloth or surface, wipe clean, and rinse—it’s ready to use again immediately without disrupting your spa’s foam balance.
Enhances water clarity and comfort by eliminating residues that can interact with sanitizers and contribute to water foaming.
Comes in a convenient 32 fl oz bottle—enough for seasonal cleaning and maintenance of multiple accessories.

FROG, Jacuzzi Hot Tubs, and Sundance Spas
FROG® @ease Floating Sanitizing System – 2-in-1 Mineral &...
$57.95
Complete floating water care system that combines pre-filled SmartChlor® and mineral cartridges in one easy-to-use unit.
Designed for hot tubs up to 600 gallons, offering 3–4 weeks of hands-free water sanitation per cartridge.
SmartChlor® Technology self-regulates to maintain a consistent chlorine level, releasing more only when needed.
Uses up to 75% less chlorine than traditional systems, reducing skin and eye irritation, odors, and spa surface wear.
Mineral cartridge lasts up to 4 months, contributing to softer, more luxurious water.
Floating unit flips over when the SmartChlor cartridge is empty, eliminating guesswork.
No daily dosing or constant testing required—ideal for vacation homes, rental spas, and busy owners.
Compatible with most spa models, excluding swim spas and saltwater systems.

FROG and Sundance Spas
FROG® @ease SmartChlor Cartridge 3‑Pack – Floating 2‑in‑1...
$54.95
Includes three replacement SmartChlor® cartridges for the FROG® @ease Floating Sanitizing System
Self-regulating chlorine release maintains consistent sanitation with less effort
Each cartridge lasts 3–4 weeks depending on spa size and usage
Uses SmartChlor® Technology, which creates a chlorine reserve for continual sanitation
Works with FROG® @ease mineral cartridges to provide complete 2-in-1 water care
Easy snap-in design for quick cartridge changes—no measuring or guesswork
Ideal for hot tubs up to 600 gallons using the FROG® @ease floating system
Reduces typical chlorine use by up to 75% while maintaining crystal clear water

SpaGuard
SpaGuard pH Increaser (18 fl oz)
$9.34
Raises the pH
Protects equipment from corrosion due to low pH
Balances water for bather comfort

Bullfrog Spas and FROG
FROG® @ease XL Sanitizing System for Bullfrog® Spas – Sim...
$74.95
Designed for Bullfrog® Spas with the Simplicity™ control system (2019 and newer) that require XL capacity sanitation
Includes one pre-filled SmartChlor® XL cartridge and one mineral cartridge for long-lasting water care
XL SmartChlor® cartridge lasts up to 6 weeks—50% longer than standard cartridges
Maintains crystal-clear water with self-regulating SmartChlor® Technology and no daily adjustments
Works with the in-line cartridge holder built into the spa—no floating devices needed
Provides complete 2-in-1 sanitation while reducing chlorine use by up to 75%
Leaves water softer, with less odor and minimal skin or eye irritation
Quick snap-in design makes cartridge replacement simple and mess-free

Hot Tub Things
Hot Tub Things® Stain & Scale Control – 32 oz Spa Mineral...
$27.50
Prevents mineral buildup and waterline scale caused by calcium, magnesium, and other hard water deposits.
Protects spa surfaces, plumbing, and heating elements from corrosion and costly damage.
Effective against metal stains caused by dissolved iron, copper, and manganese.
Ideal for use at startup (fresh fill) and as part of a weekly spa care routine.
Compatible with all sanitizer types including chlorine, bromine, saltwater, and biguanide systems.
Helps maintain clear, sparkling water by binding minerals before they can precipitate.
Easy-pour 32 oz bottle with accurate measurement markings for hassle-free dosing.
Made in the USA and trusted by spa professionals for reliable performance.

Hot Tub Things
Hot Tub Things® Bromine Tablets (1.5 lb) – Low-Odor Spa &...
$30.94
Hot Tub Things® Bromine Tablets sanitize spa and hot-tub water effectively without the harsh smell of chlorine.
Each tablet dissolves slowly to provide continuous, long-lasting sanitation that kills bacteria and controls algae growth.
The bromine formula remains active over a wide pH range, helping maintain consistent protection even when water balance fluctuates.
Designed for use with a floating dispenser or an automatic brominator for steady sanitizer delivery.
Bromine creates a softer, more comfortable water feel that’s ideal for sensitive skin and frequent spa use.
The 1.5 lb container is perfect for routine maintenance and helps extend time between water changes.

Bullfrog Spas and FROG
FROG® @ease XL SmartChlor Cartridge 3‑Pack for Bullfrog® ...
$84.95
Includes three extra-long SmartChlor® cartridges for Bullfrog® Spas with Simplicity™ control systems (2019+)
Designed for in-line use with the FROG® @ease XL Sanitizing System—no floating system required
XL cartridges provide extended sanitizing power, lasting up to 6 weeks each
SmartChlor® Technology self-regulates to maintain consistent chlorine levels
Reduces typical chlorine use by up to 75%, creating cleaner, softer water with less odor
Works alongside the FROG® mineral cartridge to deliver full 2-in-1 water care
Simple snap-in design for fast, no-mess replacements
Ideal for spa owners who want longer intervals between cartridge changes

SpaGuard
SpaGuard Total Alkalinity Increaser (2 lb)
$12.99
Eliminates “pH bounce” by balancing total alkalinity
Helps to prevent equipment and surface corrosion and damage due to low pH
1 tbsp. per 100 gallons raises total alkalinity 25 ppm

Jacuzzi Hot Tubs
Jacuzzi® ProClear Mineral Spa Sanitizer – Controlled Rele...
$55.19
Official Jacuzzi® ProClear™ Mineral Spa Sanitizer cartridge (part #2890‑185), designed to drop into your filter cap for effortless installation
Uses Controlled Release Technology (CRT) to release trace amounts of silver and other minerals during shock treatments, naturally sanitizing water and reducing chlorine demand by up to 50%
Works in tandem with spa oxidizers such as MPS, Trio #2 shock, or chlorine to enhance clarity and soften water feel
Compatible with Jacuzzi® J‑300, J‑400, J‑500, and J‑LX hot tub models that feature removable filter cap mounts for mineral stick insertion
Lasts approximately 4 months under typical weekly use—replace at that interval for consistent performance
Helps maintain stable pH, prevents staining, and minimizes odor while providing a more gentle spa experience

SpaGuard
SpaGuard Calcium Increaser (12 fl oz)
$9.14
SpaGuard's Calcium Hardness Increaser enables spa owners to increase their calcium hardness with this easy to use granular formula, which will boost your calcium hardness to above the danger zone, where low levels cause extensive corrosion of plumbing, jets, fixtures, and tub surfaces. Calcium Hardness Increaser helps raise the calcium level steadily so you don't get too much calcium and start developing scale build-up and cloudy water.

303 Products
303® Mold & Mildew Cleaner + Blocker – 16 fl oz – part #3...
$12.79
Powerful cleaner designed to remove mold, mildew, algae, and tough stains from vinyl, plastic, and spa surfaces
Leaves behind a protective barrier that helps prevent future mold and mildew growth for weeks after application
Safe for use on most spa covers, hot tub surfaces, boat seats, patio furniture, and outdoor fabrics
Non-bleach, non-acid formula ensures effective cleaning without harsh chemicals or damage to materials
Easy-to-use spray bottle allows for quick application on problem areas for fast results
Ideal for spa and pool owners looking to maintain a clean, hygienic, and fresh-smelling environment
Works on both indoor and outdoor surfaces exposed to high moisture and humidity

Sundance Spas
SunPurity™ Mineral Purifier for Sundance® Spas – part #68...
$40.82
The Sundance® Waterfall Assembly (part # 6890‑780) includes:
OEM replacement for 880 Series spas (2005–2012)
Integrated LED light lens and housing unit
Replaces cracked or discolored waterfall fixtures
Compatible with Optima, Cameo, Majesta, and more
Dimensions: 8.13" × 3.25" × 3.13"; Weight: 0.46 lb

SpaGuard
SpaGuard Anti Foam (16 fl oz)
$13.99
Quickly eliminates any surface foam caused by undesirable compounds and detergents
For use with all sanitizer types
For use in all spas and hot tubs

303 Products
303® Aerospace Protectant 16 oz – UV Protection for Vinyl...
$16.95
303® Aerospace Protectant is a professional-grade, water-based UV protector originally developed for aerospace and aviation applications. It restores surfaces like vinyl, plastic, rubber, leather, and fiberglass while blocking harmful UV rays. The non-greasy, matte finish repels dust, dirt, and stains—ideal for outdoor gear, spa covers, automotive interiors, and marine equipment. Reapply every 3–5 weeks for ongoing protection.
Blocks UV-induced fading, cracking, and sun damage
Dries to a matte, non-oily finish
Repels dust, lint, and stains
Safe on a wide range of materials: vinyl, rubber, plastic, leather, fiberglass, gelcoat, and carbon fiber
Water-based formula with no petroleum distillates
Easy spray-and-wipe application, professional results
Made in the USA

303 Products
303® Multi-Surface Cleaner – 16 fl oz Trigger Spray – par...
$16.95
303® Multi-Surface Cleaner is formulated to tackle everyday dirt, grease, oil, and stubborn stains on vinyl, fabric, and marine surfaces.
Safe for use on a wide range of materials, including boat covers, upholstery, awnings, RV interiors, and patio furniture.
Powerful yet residue-free formula leaves no film behind, restoring surfaces to a clean and fresh condition.
Biodegradable and non-toxic solution that contains no harsh detergents or solvents, making it safe for regular use.
Convenient 16 fl oz trigger spray bottle allows for easy, targeted application and quick cleaning.
Recommended as a pre-cleaner before applying 303® protectants or fabric guards for maximum performance.

SpaGuard
SpaGuard Enhanced Shock (6 lb)
$92.07
Burn away organic compounds with SpaGuard Shock
SpaGuard Spa Shock-Oxidizer eliminates soluble organic compounds and irritants in spa water. It is buffered to prevent "pH bounce." Regular use helps maintain clear spa water. SpaGuard Shock Oxidizer is not a sanitizer or algicide. To sanitize your hot tub or swim spa, you must still use chlorine, bromine, or minerals. It does not replace the need for regular applications of chemical sanitizers. Shock-Oxidizer restores "spent" sanitizer chloramines, so shocking your hot tub can also cut down on heavy chlorine odor.
Multipurpose shock with four functions: shocks, clarifies, flocculent and pH buffer
Compatible with chlorinated or brominated spas or hot tubs and those using ozone or ionization systems
Restores water sparkle, removes unpleasant odors
Multi-Purpose Chlorinated Shock