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Pool Algaecides

Algaecides for green, yellow and black algae, in preventive and treatment strengths. Copper-free formulas are the safer choice for light-colored surfaces.

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HTH Algae Guard Advanced bottle ready for fast pool algae control.

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HTH

HTH 67084 Algae Guard Advanced – Fast-Acting Algae Eliminator for All Pool Types, 32 fl oz

$35.74

Free shipping · 30-day easy returns

SeaKlear

SeaKlear 90-Day Algae Prevention & Remover - 1 Qt

$35.59

Free shipping · 30-day easy returns

NC Brands

NC Brands Coral Seas Green to Clean Pool Clarifier – Non-Toxic, 4 lb

$36.96

Free shipping · 30-day easy returns

United Chemical

United Chemical SWAM-C12 Swamp Treat Pool Algae Eliminator — 1-Pound, Non-Toxic, Treats Up to 20,000 Gallons

$37.92

Free shipping · 30-day easy returns

POOLIFE

Poolife Super Algae Bomb Polyquat 60 Algaecide – Fast-Acting, Non-Foaming, 1 qt

$42.03

Free shipping · 30-day easy returns

Bio-Dex

Bio-Dex Skill-It 32oz SK132 Fast Acting Pool Algaecide – Quick Algae Control

$41.35

Free shipping · 30-day easy returns

Eeziblue

Eeziblue Monthly Algaecide for Swimming Pools — Patented Zn-Cu Synergy, Up to 20,000 Gallons, Pre-Measured 21oz

$46.77

Free shipping · 30-day easy returns

Leisure Time

Leisure Time Spa Up 22339-02BX - 2-Pounds 2-Pack Alkalinity Booster for Hot Tubs

$33.13

Free shipping · 30-day easy returns

Natural Chemistry

Natural Chemistry Algae Break 90 – 32 oz Algae Prevention & Treatment (90 Days)

$37.37

Free shipping · 30-day easy returns

Regal

Regal Algaecide 60 for Pools & Spas | Non-Foaming Polyquat Algaecide

$39.92

Free shipping · 30-day easy returns

BioGuard

BioGuard Back Up 2-1 Quart – Effective Algae Preventative, Non-Staining, Keeps Pool Water Clear

$45.46

Free shipping · 30-day easy returns

Lo-Chlor

Lo-Chlor Pool Algaecide 90-Day, 32 oz — Treats 20,000 Gallons

$31.77

Free shipping · 30-day easy returns

poolrx

PoolRX+ Spa Unit 400-1000 Gallons | Algae Control & Low Chemical Demand

$35.87

Free shipping · 30-day easy returns

HTH Algae Guard Advanced bottle pour showing fast-acting algae control for crystal clear pool water

HTH

HTH 67243 Advanced Algae Guard – Fast Acting Algae Control for Green, Black & Mustard Algae (32 oz)

$29.00

Free shipping · 30-day easy returns

Coral Seas

Coral Seas Green Aid Green To Clean – 2 lbs | Algae Treatment for 15,000 Gallon Pools

$25.56

Free shipping · 30-day easy returns

CLOROX Pool&Spa

Clorox Pool&Spa Algaecide - Fast-Acting, Non-Foaming, 1 Quart | Prevents and Treats Pool Algae

$24.92

Free shipping · 30-day easy returns

Eeziblue

Eeziblue Monthly Algaecide for Pools — Zn-Cu Synergy, Treats Green, Black & Mustard Algae, Up to 13,000 Gallons, Pre-Measured Dose

$39.92

Free shipping · 30-day easy returns

United Chemical

United Chemical No Mor Problems Algaecide - 1 Quart

$38.55

Free shipping · 30-day easy returns

CLOROX Pool&Spa

Clorox Pool&Spa Algaecide & Clarifier - 128 oz (Pack of 1)

$21.78

Free shipping · 30-day easy returns

poolrx

PoolRx+ Spa Algaecide Unit – New Formula with Silver, Up to 6 Months, 100–400 gal

$21.83

Free shipping · 30-day easy returns

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Pool Algaecides

HTH 67084 Algae Guard Advanced – Fast-Acting Algae Eliminator for All Pool Types, 32 fl oz

SeaKlear 90-Day Algae Prevention & Remover - 1 Qt

NC Brands Coral Seas Green to Clean Pool Clarifier – Non-Toxic, 4 lb

United Chemical SWAM-C12 Swamp Treat Pool Algae Eliminator — 1-Pound, Non-Toxic, Treats Up to 20,000 Gallons

Poolife Super Algae Bomb Polyquat 60 Algaecide – Fast-Acting, Non-Foaming, 1 qt

Bio-Dex Skill-It 32oz SK132 Fast Acting Pool Algaecide – Quick Algae Control

Eeziblue Monthly Algaecide for Swimming Pools — Patented Zn-Cu Synergy, Up to 20,000 Gallons, Pre-Measured 21oz

Leisure Time Spa Up 22339-02BX - 2-Pounds 2-Pack Alkalinity Booster for Hot Tubs

Natural Chemistry Algae Break 90 – 32 oz Algae Prevention & Treatment (90 Days)

Regal Algaecide 60 for Pools & Spas | Non-Foaming Polyquat Algaecide

BioGuard Back Up 2-1 Quart – Effective Algae Preventative, Non-Staining, Keeps Pool Water Clear

Lo-Chlor Pool Algaecide 90-Day, 32 oz — Treats 20,000 Gallons

PoolRX+ Spa Unit 400-1000 Gallons | Algae Control & Low Chemical Demand

HTH 67243 Advanced Algae Guard – Fast Acting Algae Control for Green, Black & Mustard Algae (32 oz)

Coral Seas Green Aid Green To Clean – 2 lbs | Algae Treatment for 15,000 Gallon Pools

Clorox Pool&Spa Algaecide - Fast-Acting, Non-Foaming, 1 Quart | Prevents and Treats Pool Algae

Eeziblue Monthly Algaecide for Pools — Zn-Cu Synergy, Treats Green, Black & Mustard Algae, Up to 13,000 Gallons, Pre-Measured Dose

United Chemical No Mor Problems Algaecide - 1 Quart

Clorox Pool&Spa Algaecide & Clarifier - 128 oz (Pack of 1)

PoolRx+ Spa Algaecide Unit – New Formula with Silver, Up to 6 Months, 100–400 gal