Shop All Algaecides

Prevent and treat algae growth with effective algaecides for all pools. Shop algaecides at Pool Plaza from brands including Advantis, United Chemical and Haviland. Popular picks include Green Treat Algaecide 2 lb and GLB 32oz Poly-Algaecide 60 71108A.

  • Out of stock
    Green Treat Algaecide 2 lb (GTC12EACH)
    Green Treat Algaecide 2 lb (GTC12EACH)
    SKU: GTC12EACH
    $40
    Out of stock
  • Save 8%
    GLB 32oz Poly-Algaecide 60 71108A
    GLB 32oz Poly-Algaecide 60 71108A
    SKU: 71108A
    $45
    $49
    In stock
  • Out of stock
    Blue Wave® Concentrated Algaecide (50% Quat) 4 x 1qts (NY105-4)
    Blue Wave® Concentrated Algaecide (50% Quat) 4 x 1qts (NY105-4)
    SKU: NY105-4
    $77
    Out of stock
  • Out of stock
    Blue Wave® Halt® 50 Concentrated Algaecide(50% Quat/Low Foam) 4 x 1 qts (NY136-4)
    Blue Wave® Halt® 50 Concentrated Algaecide(50% Quat/Low Foam) 4 x 1 qts (NY136-4)
    SKU: NY136-4
    $85
    Out of stock
  • Black Algae Treat Algaetrine Algaecide Qt (406303)
    Black Algae Treat Algaetrine Algaecide Qt (406303)
    SKU: 406303
    $48
    In stock
  • Save 34%
    United Chemicals 2# Yellow TREAT2 Sodium Bromid 60CS/PAL - YT2-C12
    United Chemicals 2# Yellow TREAT2 Sodium Bromid PAL - YT2-C12
    SKU: YT2-C12
    $26.76
    $41
    In stock
  • Save 28%
    ProTeam Polyquat 60 Algaecide 32 fl oz Bottle 12/Case | C003098-CS20Q
    Haviland ProTeam Polyquat 60 Algaecide 32 fl oz Bottle - C003098-CS20Q
    SKU: C003098-CS20Q
    $38
    $53
    In stock
  • Out of stock
    Advantis Algae Treatments Ultima Total Control Shock/Algaecide 3lb (24726)
    Advantis Algae Treatments Ultima Total Control Shock/Algaecide 3lb (24726)
    SKU: 24726
    $48
    Out of stock
  • Save 50%
    Natural Chemistry 17732NCM 1 qt Algae Max
    Natural Chemistry 17732NCM 1 qt Algae Max
    SKU: 17732NCM
    $29
    $59
    In stock
  • Save 34%
    United Chemicals 1# Swamp Treat - SWAM-C12
    United Chemicals 1# Swamp Treat - SWAM-C12
    SKU: SWAM-C12
    $33.38
    $51
    In stock
  • Save 33%
    Popular Algaedyne Algaecide 32 fl oz Bottle 12/Case | 47-600
    Pool Products Packaging Popular Algaedyne Algaecide 32 fl oz Bottle - 47-600
    SKU: 47-600
    $74.66
    $112
    In stock
  • Save 33%
    Silver Algaedyn 47-612-G 1 gal Bottle
    Pool Products Packaging One Gallon Silver Algaedyne - 47-612-G
    SKU: 47-612-G
    $280.17
    $421
    In stock
  • Save 33%
    Natural Chemistry Algae Break 90 Algaecide, 32 oz Bottle | 17600NCM
    Natural Chemistry Algae Break 90 Algaecide, 32 oz Bottle - 17600NCM
    SKU: 17600NCM
    $33.91
    $51
    In stock
  • Save 33%
    BioLab NC Pro Series Algae Break 90 Algaecide, 4 x 1 Gallon - 20860PRO
    BioLab NC Pro Series Algae Break 90 Algaecide, 4 x 1 Gallon - 20860PRO
    SKU: 20860PRO
    $99.59
    $150
    In stock
  • Save 33%
    Natural Chemistry Pro Series Algae Break 90 Algaecide, 1 Gallon Bottle | 20760PRO
    Natural Chemistry Pro Series Algae Break 90 Algaecide, 1 Gallon Bottle - 20760PRO
    SKU: 20760PRO
    $88.05
    $133
    In stock
  • Save 34%
    Suncoast Algaecide 60 013-1310 Qt Pool Season - 47245960
    SKU: 47245960
    $34.20
    $52
    In stock
  • Save 33%
    GLB Algimycin 2000 Algaecide, 32 oz Bottle - 71104A
    GLB Algimycin 2000 Algaecide, 32 oz Bottle - 71104A
    SKU: 71104A
    $39.71
    $60
    In stock
  • Save 34%
    GLB Strike-Out Algaecide, 32 oz Bottle, 12/Case | 71114A
    GLB Strike-Out Algaecide, 32 oz Bottle - 71114A
    SKU: 71114A
    $39.37
    $60
    In stock
  • Save 33%
    GLB Algae-X 30% Polyquat Algaecide, 32 oz Bottle - 71100A
    GLB Algae-X 30% Polyquat Algaecide, 32 oz Bottle - 71100A
    SKU: 71100A
    $34.59
    $52
    In stock
  • Save 33%
    GLB Algimycin 3000 Algaecide 32 fl oz Bottle - 71105A
    GLB Algimycin 3000 Algaecide 32 fl oz Bottle - 71105A
    SKU: 71105A
    $35.68
    $54
    In stock
  • Save 34%
    Coral Seas Yellow Out Algaecide, 4 lb Bottle, 8 per Case
    BioLab Coral Seas Yellow Out Algaecide, 4 lb Bottle - 17614COR
    SKU: 17614COR
    $39.54
    $60
    In stock
  • Save 28%
    Coral Seas 17616COR 20 lb Pail Yellow Out® Algaecide
    BioLab Coral Seas Yellow Out 20Lbs - 17616COR
    SKU: 17616COR
    $179
    $251
    In stock
  • Save 34%
    Coral Seas Green Aid Algaecide, 4 lb Bottle | 17644COR
    BioLab Coral Seas Green Aid Algaecide, 4 lb Bottle - 17644COR
    SKU: 17644COR
    $39.54
    $60
    In stock
  • Save 34%
    BioLab Coral Seas Green Aid Algaecide, 2 lb Bottle - 17642COR
    BioLab Coral Seas Green Aid Algaecide, 2 lb Bottle - 17642COR
    SKU: 17642COR
    $33.50
    $51
    In stock