Best Hth in 2026

BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long

USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week

COMPATIBILITY: Vinyl-lined pools and saltwater systems

BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

BENEFITS: Increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long

USE: Apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm

COMPATIBILITY: Effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems

BENEFITS: Increases the chlorine level in swimming pools to kill bacteria and algae

USE: Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm

COMPATIBILITY: Effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems

BENEFITS: Clears up dull, cloudy or hazy pool water so you can relax in crystal clear water all summer long

USE: Apply directly to pool water or skimmer; Use 4-12 hours after HTH Shock! and HTH Algaecide products for best results

COMPATIBILITY: Great for all pool types including all pool surfaces and saltwater systems

BENEFIT: Relax into worry-free, no foaming soft water with this easy-to-use product

CONDITIONS SPA WATER: Efficiently removes foam from spas and hot tubs; Ensures a soothing experience

SOFTENTS WATER WITH VITAMIN E: HTH Spa Defoamer is formulated to provide a more soothing experience

BENEFIT: Protect your swimming pool and enjoy clean, clear water with these easy-to-use chlorine-based tabs; Kills algae and bacteria

CLEAN, CLEAR WATER: HTH Chlorine Tabs keep water clear while protecting against bacteria, algae and other organisms

SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH Chlorine Tabs dissolve slowly and last up to one week

BENEFITS: Tests chlorine, bromine, pH, alkalinity, calcium hardness and CYA in your swimming pool

USE: Test weekly so you can keep your pool water clean all season long

COMPATIBILITY: All pool types including chlorine, bromine and saltwater systems

BENEFITS: Disinfects and sanitizes water

USE: Apply to water through a floating brominator or other feeder

COMPATIBILITY: Fits all floaters; Made for use with bromine sanitizing systems

BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product

FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

BENEFITS: Clears up dull, cloudy or hazy pool water so you can relax in crystal clear water all summer long

USE: Apply directly to pool water or skimmer; Use 4-12 hours after HTH Shock! and HTH Algaecide products for best results

COMPATIBILITY: Great for all pool types including all pool surfaces and saltwater systems

BENEFIT: Sanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy, convenient, and individually wrapped 3-inch tablet

CLEAR BLUE WATER: This advanced formula sanitizes, clarifies, and kills algae for beautiful, clean, and clear water all season

SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH 3” Individually Wrapped Chlorine Tabs Advanced dissolve slowly and last up to one week

BENEFITS: Sanitize, clarify, and soften the water in your swimming pool so it is always ready for fun

USE: Apply directly to pool water, broadcasting it evenly over a wide area in the deepest part of the pool; Add granules while filter pump is running during the evening; Use clean, dry scoop only used for this product

COMPATIBILITY: Chlorine and saltwater systems

HTH super shock treatment, 1 lb.

It is convenient, easy to use, and won't over-stabilize your pool

4-In-1. Kills bacteria & algae. Won't fade liner when used as directed. Crystal clear results in 24 hours. Reduces eye irritation caused by pool water. Compatible with salt systems

Product 1: BENEFITS: Takes dull and cloudy pool water and quickly turns it to a crystal-clear swimming pool that you can enjoy all season long

Product 1: USE

Product 1: COMPATIBILITY

★ Classic Onet game

★ 2 Theme: Animal - Fruit

★ Hint Feature

Hth shock treatment, 6 count 1 lb

It is convenient, easy to use, and won't over-stabilize your pool

Kills bacteria & algae. Compatible with salt systems

BENEFIT: Rely on this convenient and easy-to-use sanitizer to control algae, kill bacteria, and destroy contaminants so you can get the most out of your spa

IDEAL USE: For sanitizing and shock treating spas and hot tubs; Destroys algae and bacteria; Fast acting and easy to use

CREATES MORE COMFORTABLE WATER: Protects water against chlorine loss for more comfortable water with no sediment

BENEFITS: Sanitize, clarify, and soften the water in your swimming pool so it is always ready for fun

USE: Apply directly to pool water, broadcasting it evenly over a wide area in the deepest part of the pool. Add granules while filter pump is running during the evening. Use clean, dry scoop only used for this product.

COMPATIBILITY: Chlorine and saltwater systems

BENEFIT: Use this concentrated formula to bring crystal clarity back to dull spa or hot tub water and enjoy a more relaxing experience

STRONG CLEANSER: Concentrated formula that will ensure your spa or hot tub is ideal for soaking for a long time

IMPROVES PERFORMANCE: Raises filter efficiency to keep your water staying clean

USE: Quickly and easily test your indoor and outdoor swimming pool water for 6 key elements and get the most accurate results; Tests for total chlorine, bromine, pH, total alkalinity, total hardness, and cyanuric acid (CYA) levels

INCLUDES: Comes with enough solution and test strips for up to 100 tests; Compatible with all swimming pools

QUICK, EASY & ACCURATE: HTH provides a simple and fast way to accurately test and balance your swimming pool water

BENEFIT: Get long-lasting protection from extreme algae; This non-foaming algae control kills and prevents blooms of all algae types

OUR STRONGEST ALGAE CONTROL: Kills, prevents and protects against regrowth of heavy green, black and mustard swimming pool algae for up to 3 months

NON-FOAMING, FAST-ACTING: Add HTH Algae Guard Ultra directly to your swimming pool water and swim right away

BENEFIT: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES: Multi-functional shock treatment for weekly use; Use weekly to solve 90% of pool water problems within 24 hours

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

All-in-one weekly chlorine boost increases chlorine levels quickly

1 lb. treats up to 10,000 gallons of pool water

Prevents stains & scale

BENEFITS: Clears out all the gunk that the swimming pool filter catches so that it can continue to run correctly and keep your water ready for fun all season long

USE: Apply in the evening and allow to work overnight

COMPATIBILITY: Great for all types of pool filters including cartridges, D.E. and sand filters; for all pool types including saltwater systems

BENEFITS: Tests chlorine, bromine, pH, alkalinity, total hardness and cyanuric acid in your swimming pool

USE: Test weekly so you can keep your pool water clean all season long

COMPATIBILITY: All pool types including chlorine, bromine and saltwater systems

Product 1: BENEFIT: Be all clear for more summertime fun; Use this powerful, non-foaming formula to kill and prevent heavy amounts of algae blooms for crystal clear pool water

Product 1: POWERFUL ALGAE CONTROL: HTH Algae Guard Advanced effectively destroys and prevents heavy green, black and mustard algae blooms

Product 1: NON-FOAMING, FAST-ACTING: Add HTH Algae Guard Advanced directly to your swimming pool water and swim right away

BENEFIT: Give your swimming pool water a visibly brilliant sparkle with this convenient and easy-to-use Cal Hypo formula; Destroys bacteria and controls algae

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

SLOW DISSOLVING, LONG LASTING: The patented HTH slow dissolving technology protects against chlorine loss in direct sunlight and a sparkle that lasts up to 1 week

ENJOY YOUR POOL & SPA: Keep your water clean, healthy, and enjoyable with our 7-in-1 test strips for pools and spas that test your water for hardness, chlorine, bromine, free chlorine, pH, cyanuric acid, and alkalinity

QUICK & EASY: Our pool strip test takes the guesswork out of your pool and spa maintenance. Simply dip the pool strips into the water, get your results within seconds, and adjust your water accordingly

ACCURATE & RELIABLE: It’s never been this easy to take a faultless reading of your pool chlorine test strips. The pool testing strip bottle features a comprehensive color chart for reliable and accurate results