Best Hth Pool Enzymes in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fat Boy Tools | 9.80 | ❌ | ❌ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pinnacle Vortex | 9.09 | ❌ | ❌ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Moofin | 9.88 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Life_is_Good Store | 6.38 | ❌ | ❌ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mr. friendly brands | 5.57 | ❌ | ❌ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pinnacle Vortex | 4.88 | ❌ | ❌ | ❌ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
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
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Hth | 11 |
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.
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