HTH Pool Care Clear Defense — Liquid, 28 fl oz — Pool Algaecide for Water Treatment
HTH Pool Care Clear Defense — Liquid, 28 fl oz — Pool Algaecide for Water Treatment
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HTH Pool Care Clear Defense — Liquid, 28 fl oz — Pool Algaecide for Water Treatment

4.3 stars out of 41 reviews
(4.3)|
41 ratings
HTH Pool Care Clear Defense — Liquid, 28 fl oz — Pool Algaecide for Water TreatmentHTH Pool Care Clear Defense for Swimming Pools Liquid 28 oz
Size:28OZ
Pack Size:Single

Key item features

  • Triple Action: Features a 3-in-1 formula with powerful enzymes that actively prevents algae growth and removes the food source for algae.
  • Phosphate Elimination: Effectively removes phosphates from pool water, which are a primary nutrient for algae, contributing to clearer water.
  • Waterline Defense: Prevents the formation of unsightly waterline buildup and helps to avoid cloudy water conditions.
  • Broad Compatibility: Suitable for use in all types of swimming pools, including those with vinyl linings and saltwater systems.
  • Effortless Application: Designed for easy and convenient use, requiring a simple weekly application of 2 oz per 10,000 gallons into the skimmer.
  • Concentrated Liquid: Provided in a 28 fl oz concentrated liquid formula for efficient and fast-acting pool treatment.
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Current price is $19.9771.3 ¢/fl oz
Price when purchased online
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Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $19.97
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Customer ratings & reviews

4.3 out of 5 stars
stars41 ratings18 reviews
How item rating is calculated
  1. 5 stars76% (31)
  2. 4 stars7% (3)
  3. 3 stars5% (2)
  4. 2 stars0% (0)
  5. 1 star12% (5)

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Showing 1-3 of 18 reviews

Sep 10, 2025
Brandy
Top Reviewer
Item details
Size: 28OZ
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Works like a charm!

I'm new to cleaning filters. (I'm an old pro at backwashing a sand filter.) This cleaner has made the process much easier and the filters much cleaner. I would recommend it to a friend.

Helpful?262MMT53V7JE2631440093
May 9, 2025
Rebecca
Item details
Size: 28OZ
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Crystal Clear Pool

I was getting ready to be away for 5-6 weeks. I do my own pool care and wanted to boost up the chemistry a little bit. I used this and came home to a clear pool with all chemicals in normal range. I am pleased with product.

Incentivized Review
Helpful?262MMT53V7JE2631440093
Jan 10, 2026
Gayle
Item details
Size: 28OZ
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

beautiful clear pool

this product allows me to effortlessly keep my pool clear with out adding additional chemicals for this

Incentivized Review
Helpful?262MMT53V7JE2631440093