Best Hth Pool Enzymes in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Hth Pool Enzymes

HTH 52027 Ultimate Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb
#TOP1
Hth 52027 Ultimate Shock Treatment Swimming Pool Chlorine
9.8
PM SCORE
HTH 52017 Shock Treatment Swimming Pool Chlorine Cleaner, 13.3 oz, Regular
#TOP2
Hth 52017 Shock Treatment Swimming Pool Chlorine Cleaner,
9.8
PM SCORE
HTH 67023 Super Clarifier Swimming Pool Cleaner, 32 fl oz
#TOP3
Hth 67023 Super Clarifier Swimming Pool Cleaner, 32
9.8
PM SCORE

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Summary of the Best Hth Pool Enzymes of 2026

Hth 52027 Ultimate Shock Treatment Swimming Pool Chlorine Cleaner, 1 Lb

HTH
52027
0.75 X 4.50 X 11.00 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fat Boy Tools 9.80

Features

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

FEATURES: Increases chlorine levels; Kills and prevents bacteria and algae; Reduces eye and skin irritation; Prevents stains from metals and scale; See results in 24 hours; 1 bag treats 13,500 gallons; Won’t fade vinyl pool liners

INCLUDES: One 1-lb bag of shock treatment for your swimming pool

Hth 52017 Shock Treatment Swimming Pool Chlorine Cleaner, 13.3 Oz, Regular

HTH
52017
0.75 X 4.50 X 11.00 Inches
0.83 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Pinnacle Vortex 9.09

Features

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

FEATURES: Fast acting; Fast dissolving; 1 bag treats 10,000 gallons; Won’t fade liners

INCLUDES: One 13.3-oz bag of shock treatment for your swimming pool

Hth 67023 Super Clarifier Swimming Pool Cleaner, 32 Fl Oz

HTH
67023
2.25 X 4.23 X 9.50 Inches
2.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Moofin 9.88

Features

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

FEATURES: Does not affect pool’s pH levels; Improves filter efficiency to remove dead algae and organic debris; Fast-acting, concentrated formula

INCLUDES: One 1-qt container of super clarifier for your swimming pool water

#TOP4

Hth Spa Care Defoamer, Spa & Hot Tub Chemical Eliminates Foaming, Softens Water, 16 Oz

HTH
86116
2.46 X 2.46 X 7.85 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

COMPATIBLE WITH ALL SPAS: HTH Spa Defoamer is great for all spas, including bromine, chlorine and biguanide

YOU'RE ALL CLEAR WITH HTH: For best results, use HTH Spa Defoamer as part of your regular HTH Spa care routine

Hth 67067 Swimming Pool Care Clarifier Advanced - Crystal Clear Water In 24 Hours

HTH
67067
4.23 X 2.25 X 9.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Life_is_Good Store 6.38

Features

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

FEATURES: Does not affect pool’s pH levels; Improves filter efficiency to remove dead algae and organic debris; Fast-acting, concentrated formula

INCLUDES: One 1-qt container of super clarifier for your swimming pool water

#TOP6

Hth 52005 Super Shock Treatment Swimming Pool Cleaner, Single

HTH
52005
0.75 X 0.75 X 9.40 inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Mr. friendly brands 5.57

Features

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

Hth 67080 Swimming Pool Care Drop Ou Flocculant - Clears Cloudy Water Fast & 67067 Swimming Pool Care Clarifier Advanced - Crystal Clear Water In 24 Hours

HTH
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Product 1: FEATURES

Product 2: BENEFITS

Product 2: USE

Product 2: COMPATIBILITY

Product 2: FEATURES

#TOP8

Hth 52001 Shock Treatment Swimming Pool Cleaner, Pack Of 6, Regular

HTH
52001
10.50 X 4.25 X 8.38 Inches
5.29 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Pinnacle Vortex 4.88

Features

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

hth is here to help with you swimming pool needs

HTH is owned by Sigura, a leading manufacturer of water treatment chemicals

Hth Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical For Crystal Clear Water, 16 Oz

HTH
86121
2.46 X 2.46 X 7.85 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

COMPATIBLE WITH ALL SPAS: HTH Spa Clarifier is great for all spas, including bromine, chlorine and biguanide

YOU'RE ALL CLEAR WITH HTH: For best results, use HTH Spa Clarifier as part of your regular HTH Spa care routine

Hth 67071 Swimming Pool Care Filter Cleaner - Removes Dirt, Oil, And Grease Buildup For Crystal Clear Water

HTH
67071
4.23 X 2.25 X 9.50 Inches
2.35 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

FEATURES: Helps filtrations system to work more efficiently and last longer

INCLUDES: One 1-qt container of filter cleaner for your swimming pool water

Hth 67084 Swimming Pool Care Algae Guard Advanced, Swimming Pool Chemical, Fast-Acting, 32 Fl Oz & 67067 Swimming Pool Care Clarifier Advanced - Crystal Clear Water In 24 Hours

HTH
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Product 1: COMPATIBLE WITH ALL POOLS: This product is great for all swimming pools including vinyl-lined and saltwater systems

Product 2: BENEFITS: Clears up dull, cloudy or hazy pool water so you can relax in crystal clear water all summer long

Product 2: USE: Apply directly to pool water or skimmer; Use 4-12 hours after HTH Shock! and HTH Algaecide products for best results

Product 2: COMPATIBILITY: Great for all pool types including all pool surfaces and saltwater systems

Product 2: FEATURES: Does not affect pool’s pH levels; Improves filter efficiency to remove dead algae and organic debris; Fast-acting, concentrated formula

Top 10 pool enzymes Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Hth 11

Top 10 pool enzymes Brands Pie Chart


We've carried out a comprehensive analysis of 13,104 reviews on pool enzymes, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select pool enzymes priced around $22.78, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 11 pool enzymes for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right enzymes Products based on their needs, saving them considerable time when choosing which pool enzymes to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.