Best Swimming Pool Algaecides Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

Pool Algae Treatment: Our Pool Algaecide and Clarifier is specially formulated to treat existing algae while providing long-lasting defense against stubborn growth, ensuring that your pool remains clear and algae-free for an extended period of time.
Maintain Crystal Clear Water: Kills and prevents all types of swimming pool algae (green, mustard, black algae) for crystal clear swimming pool water.
Non-Foaming Formula: Spend less time maintaining and more time enjoying your pool with this Swimming Pool Algaecide and Clarifier, which features a non-foaming formula.
Suitable for Use in All Types of Pools: This product is proven to meet the needs of every pool owner, as it is compatible with all types of pools, including saltwater pools. You can trust our product to deliver exceptional performance and keep your pool water clean and clear.
For best results, add to the deepest end of the pool with the filter running. Circulating pool water when applying chemicals helps disperse chemicals throughout the pool for maximum coverage
Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations.
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HTH 67244, Swimming Pool Care Algae Guard Ultra, 32oz | Long Lasting Formula; Eliminates & Prevents Green, Black, and Mustard Algae; Fast Acting & Effective Swimming Pool Chemical

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AquaDoc Copper Algaecide for Swimming Pools - 90 Day Formula, 32 oz | Non-Foaming, Non-Staining Algaecide for Inground & Above Ground Pools, Works with your Chlorine Routine - Made in USA

90 Day Algae Control - AquaDoc Double Whammy is a copper-based algaecide for pool designed to help prevent algae growth for up to 3 months when used as directed, supporting long-lasting algae control in balanced pool water.
For Use Against Common Pool Algae - Formulated for use against blue-green, green, yellow, mustard, and black algae when used as directed. For severe algae, additional steps such as brushing, shocking the pool, adjusting pH to 7.2, and adequate filtration are recommended for best results.
Non-Foaming, Non-Staining Formula - Designed not to foam or stain, helping maintain pool surface appearance. Suitable for all pool types, including inground and above ground pools. Dilute in a bucket of pool water before adding to pools with plaster finishes.
Helps Reduce Chlorine Demand - Formulated to reduce chlorine demand when used as directed, working alongside your regular sanitizer as part of routine maintenance. Keep your chlorine or other sanitizer at its normal level; this algaecide supports your sanitizer, it does not replace it.
Simple Dosing - Apply 16 fl oz per 10,000 gallons of pool water for algae prevention, or 32 fl oz per 10,000 gallons for severe algae. Always follow label instructions for complete directions.
Made in the USA - At AquaDoc, we make high-quality pool chemicals designed to support a consistent water care routine. Made in the USA and a proud supporter of the Wounded Warrior Project.
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15% Off

Clorox® Pool&Spa™ Swimming Pool Algaecide, Prevents and Treats Pool Algae, Non-Foaming, 1 Quart (Pack of 1)

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In The Swim

In The Swim Super Algaecide - 7.1% Chelated Copper - 1 Quart | For Above Ground or Inground Swimming Pools - Low Odor, Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools

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In The Swim

In The Swim Algaecide 60 Plus For Swimming Pools - 1 Quart | Non-Metallic, Low Odor, Non-Foaming Algae Bloom Preventative - Chlorine Sanitizer Compatible

In The Swim Algaecide 60 Plus is perfect for preventing and controlling various types of algae including: green, yellow, black, and pink in your above ground or in-ground swimming pool.
Algaecide 60 Plus is a non-metallic, non-foaming, low odor formula specially formulated for pools with attached spas, waterfalls, or decorative fountains.
This product is pH tolerant which means it is effective in both acidic and alkaline pH ranges, thereby eliminating the need to alter pool chemistry prior to application.
Works nicely for pools using well water. Compatible with various sanitizers such as chlorine, bromine, biguanide, and salt systems.
We recommend and initial dosage of 6-11 ounces per 10,000 gallons, for standard maintenance 2-4 ounces per 10,000 gallons, and for visible algae 11-17 ounces per 10,000 gallons.
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Doheny's Algaecide 60 | Pro-Grade, Metal-Free & Non-Foaming | Prevents All Algae Types | No Stains or Clouding | Safe for Salt, Chlorine & Bromine Pools | Treats 160,000 Gallons | 4 x 40oz (160oz)

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Polyquat 60 Algaecide for Swimming Pool, Highly Concentrated, 32 oz | Algae Killer for Black, Green and Mustard Algae, Inground and Above Ground Pools, Professional Grade Treatment

KNOCKS OUT GREEN, BLACK & MUSTARD ALGAE: Maximum-strength Polyquat 60 algaecide for swimming pool use delivers fast-acting knockdown of stubborn green, black, and mustard algae blooms, restoring inviting water clarity so you can reclaim your pool sooner in demanding swim seasons.
POOL ALGAECIDE FOR INGROUND & ABOVE GROUND POOLS: This targeted algaecide 60 scales effortlessly from intimate plunge pools to sprawling resort-style layouts, giving every pool owner a single, go-to pool algaecide for inground pool and above ground pool care.
BEST POOL ALGAE KILLER: Non-metallic, non-foaming formula that will not stain vinyl, fiberglass, gunite, or plaster, and keeps water clear without clouding — clean results with no metal or copper residue.
COMPATIBLE WITH ALL POOLS: This polyquat algaecide works with chlorine, bromine, and saltwater systems and will not disrupt pool chemistry or require pH adjustment, so it drops right into your routine.
SUMMER & WEEKLY ALGAE PROTECTION: Use as a weekly maintenance dose or as a summer or winter algaecide for pool opening and pool closing; one quart treats up to 40,000 gallons for season-long algae prevention.
ADVANCED ALGAECIDE 60 PERFORMANCE: An advanced Polyquat 60 formula provides strong preventative algae control without metals or added copper — comparable strength to leading 60-strength pool algaecides.
FOR RESIDENTIAL & COMMERCIAL POOLS: Reliable algae prevention for backyard pools and commercial swimming pools alike, with concentrated polyquat performance dose after dose.
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Our #1 Pick Today
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Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

Pool Algae Treatment: Our Pool Algaecide and Clarifier is specially formulated to treat existing algae while providing long-lasting defense against stubborn growth, ensuring that your pool remains clear and algae-free for an extended period of time.
Maintain Crystal Clear Water: Kills and prevents all types of swimming pool algae (green, mustard, black algae) for crystal clear swimming pool water.
Non-Foaming Formula: Spend less time maintaining and more time enjoying your pool with this Swimming Pool Algaecide and Clarifier, which features a non-foaming formula.
Suitable for Use in All Types of Pools: This product is proven to meet the needs of every pool owner, as it is compatible with all types of pools, including saltwater pools. You can trust our product to deliver exceptional performance and keep your pool water clean and clear.
For best results, add to the deepest end of the pool with the filter running. Circulating pool water when applying chemicals helps disperse chemicals throughout the pool for maximum coverage
Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations.
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Swimming Pool Algaecides deals are available from: Amazon, starting from $14.71.

The biggest discount we found is 15% on Clorox® Pool&Spa™ Swimming Pool Algaecide, Prevents and Treats Pool Algae, Non-Foaming, 1 Quart (Pack of 1) (42232CLX) at Amazon.

The lowest price we found is $14.71 while the highest is $93.56. Prices for the best Swimming Pool Algaecides deals average at $35.65.