HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types
HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types
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HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types

HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool TypesHTH Pool Care Algae Guard Advanced for Swimming Pools Liquid Algaecide Compatible with all pool types 28oz
Count Per Pack:1

Key item features

  • Powerful Action: Features a 5-in-1 action formula that effectively kills and prevents green, black, and mustard algae in swimming pools.
  • Rapid Treatment: This non-foaming, fast-acting liquid algaecide allows for immediate swimming after application.
  • Universal Compatibility: Designed to be compatible with all types of swimming pools, ensuring broad usability.
  • Seasonal Use: Ideal for both opening and closing your pool, providing comprehensive algae control throughout the season.
  • Convenient Application: The 28 fl oz (or 32 fl oz as mentioned in the detailed description) bottle contains a liquid algaecide that is easy to add directly to pool water.
  • Algae Prevention: Specifically formulated to destroy and prevent all types of algae, maintaining crystal clear pool water.
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Current price is $20.9774.9 ¢/fl oz
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Customer ratings & reviews

4.5 out of 5 stars
stars480 ratings217 reviews
How item rating is calculated
  1. 5 stars77% (368)
  2. 4 stars13% (62)
  3. 3 stars3% (15)
  4. 2 stars1% (7)
  5. 1 star6% (28)

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Showing 1-3 of 217 reviews

May 29, 2026
Bridgett
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Love this product!

This is the best Algae cleaner for my pool. We travel quite a bit for work and I'm always concerned about the pool with algae on the walls. I don't have to worry about that with this product. You just have to use the right amount for your pool size to prevent it getting cloudy but it works!!!

Helpful?7L681FVE3P412116764435
Apr 29, 2025
Bryan
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Amazing product, works fast!

We emptied our pool and refilled it this year, unfortunately our filter needed to be replaces so the water sat with only a chlorine pool floater for about 4 days so it turned green from the algae. I put about 6 ounces in the pool filter and allowed it to recirculate for about 5 minutes before switching it to filter. Our water was crystal clear within 24 hours. Amazing!

Helpful?7L681FVE3P412116764435
Mar 23, 2025
Bruce
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

HTH Algae Gaurd Use in my Unfiltered Water Feature

This is a good product for my non-filtered backyard water feature. A small teaspoon every three days seems to keep my algae levels and blooms under control. I've used this product for about a year in conjunction with HTH Bromine tablets and my pond water stays clear. No evidence of any harm to my fauna users, day or night.

Helpful?7L681FVE3P412116764435