Pool & Spa Chemicals

Keep your water clean, clear, and balanced with our Pool & Spa Chemicals category. From sanitizers and shock to water balancers and treatments, we have everything you need for safe, healthy, and sparkling water.

  • Save 33%
    Natural Chemistry Spa Stain & Scale Control, 32 oz Bottle | 14235NCM
    Natural Chemistry Spa Stain & Scale Control, 32 oz Bottle | 14235NCM
    SKU: 14235NCM
    $34.50
    $52
    In stock
  • Save 33%
    Natural Chemistry Spa Cleanse, 32 Oz Bottle | 14230Ncm
    Natural Chemistry Spa Cleanse, 32 Oz Bottle | 14230Ncm
    SKU: 14230NCM
    $35.19
    $53
    In stock
  • Save 34%
    Natural Chemistry Spa Granular Chlorine Concentrate, 2 lb Bottle, 12/Case | 14221NCM
    Natural Chemistry Spa Granular Chlorine Concentrate, 2 lb Bottle | 14221NCM
    SKU: 14221NCM
    $34.82
    $53
    In stock
  • Save 33%
    Natural Chemistry Calcium Increaser, 1.83 lb Bottle | 14205NCM
    Natural Chemistry Calcium Increaser, 1.83 lb Bottle | 14205NCM
    SKU: 14205NCM
    $24.50
    $37
    In stock
  • Save 33%
    Natural Chemistry Spa Pipe Cleanse, 32 oz Bottle | 14234NCM
    Natural Chemistry Spa Pipe Cleanse, 32 oz Bottle | 14234NCM
    SKU: 14234NCM
    $35.19
    $53
    In stock
  • Save 33%
    Natural Chemistry Alkalinity Increaser, 2.71 lb Bottle | 14204NCM
    Natural Chemistry Alkalinity Increaser, 2.71 lb Bottle | 14204NCM
    SKU: 14204NCM
    $21.18
    $32
    In stock
  • Save 33%
    Natural Chemistry Spa Dichlor Chlorine Concentrate Granular, 5 lb Bottle, 4/Case | 14223NCM
    Natural Chemistry Spa Dichlor Chlorine Concentrate Granular, 5 lb Bottle | 14223NCM
    SKU: 14223NCM
    $79.60
    $120
    In stock
  • Save 34%
    Natural Chemistry Spa pH Decreaser, 3.37 lb Bottle | 14203NCM
    Natural Chemistry Spa pH Decreaser, 3.37 lb Bottle | 14203NCM
    SKU: 14203NCM
    $19.05
    $29
    In stock
  • Save 33%
    Natural Chemistry Spa Bromine Tablets, 4.5 lb Bottle | 14220NCM
    Natural Chemistry Spa Bromine Tablets, 4.5 lb Bottle | 14220NCM
    SKU: 14220NCM
    $79
    $119
    In stock
  • Save 33%
    Natural Chemistry Spa Brominating Concentrate, 2 lb Bottle | 14224NCM
    Natural Chemistry Spa Brominating Concentrate, 2 lb Bottle | 14224NCM
    SKU: 14224NCM
    $30.52
    $46
    In stock
  • Save 34%
    Natural Chemistry Spa Clarify Clarifier, 16 oz Bottle | 14216NCM
    Natural Chemistry Spa Clarify Clarifier, 16 oz Bottle | 14216NCM
    SKU: 14216NCM
    $18.33
    $28
    In stock
  • Save 33%
    Natural Chemistry Spa Bromine Tablets, 1.5 lb Bottle | 14229NCM
    Natural Chemistry Spa Bromine Tablets, 1.5 lb Bottle | 14229NCM
    SKU: 14229NCM
    $36.58
    $55
    In stock
  • Save 33%
    Natural Chemistry Pro Series PhosREMOVE Phosphate Remover, 32 oz Bottle | 20500PRO
    Natural Chemistry Pro Series PhosREMOVE Phosphate Remover, 32 oz Bottle | 20500PRO
    SKU: 20500PRO
    $39.95
    $60
    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
    $85.48
    $129
    In stock
  • Save 33%
    Pro Series Prozymes Pool, 1 Gallon Bottle, 4/Case | 20401PRO
    Pro Series Prozymes Pool, 1 Gallon Bottle | 20401PRO
    SKU: 20401PRO
    $58.31
    $88
    In stock
  • Save 34%
    Natural Chemistry Salt Water Magic Monthly Kit, 1 L Bottle | 17404NCM
    Natural Chemistry Salt Water Magic Monthly Kit, 1 L Bottle | 17404NCM
    SKU: 17404NCM
    $42.14
    $64
    In stock
  • Save 33%
    Natural Chemistry Instant Pool Water Conditioner, 1 Gallon Bottle | 17401NCM
    Natural Chemistry Instant Pool Water Conditioner, 1 Gallon Bottle | 17401NCM
    SKU: 17401NCM
    $33.12
    $50
    In stock
  • Save 33% Out of stock
    BIOLAB INC PRO SERIES PROZYMES SPA 20405PRO 5GAL | 20405PRO
    SKU: 20405PRO
    $255.95
    $384
    Out of stock
  • Save 33%
    NC Pro Series Algae Break 90 Algaecide, 4 x 1 Gallon
    SKU: 20860PRO
    $96.68
    $146
    In stock
  • Save 16% Out of stock
    PRO SERIES ALGAE BREAK 90, 5 Gallon PRO SERIES ALGAE BREAK 90 3 MONTH ALGACIDE 5 GALLON NLA 5 GALLON/18.9L
    SKU: 20765PRO
    $686
    $824
    Out of stock
  • Save 33%
    Pro Series Dual-Action Algaecide 1 Gallon Bottle 4/Case | 20605PRO
    Pro Series Dual-Action Algaecide 1 Gallon Bottle| 20605PRO
    SKU: 20605PRO
    $113.06
    $170
    In stock
  • Save 33%
    Biolab Stain & Scale Pro Series 5 Gallon Bottle 1/Case | 20705Pro
    Biolab Stain & Scale Pro Series 5 Gallon Bottle| 20705Pro
    SKU: 20705PRO
    $241.67
    $363
    In stock
  • Save 33%
    Natural Chemistry Pro Series Pro Blend Phosphate Remover, 1 Gallon Bottle | 20520PRO
    Natural Chemistry Pro Series Pro Blend Phosphate Remover, 1 Gallon Bottle | 20520PRO
    SKU: 20520PRO
    $86.45
    $130
    In stock
  • Save 33%
    Pro Series Pro Blend Phosphate Remover 5 Gallon Drum | 20523PRO
    Pro Series Pro Blend Phosphate Remover 5 Gallon Drum | 20523PRO
    SKU: 20523PRO
    $266.93
    $401
    In stock