Shop All Water Testing & Control

  • Save 35% Out of stock
    Poolmaster Solution #3 Acid Demand PS9753 1OZ Pro Series - 22393
    SKU: 22393
    $16.88
    $26
    Out of stock
  • Save 35% Out of stock
    Poolmaster Solution #4 Chlorinator Neutralizer PS9754 .5OZ Pro Series - 22394
    SKU: 22394
    $15.58
    $24
    Out of stock
  • Save 35% Out of stock
    Poolmaster .5OZ Phenol Red Reagent PS899PHE Supreme Series - 24251
    SKU: 24251
    $15.58
    $24
    Out of stock
  • Save 34% Out of stock
    Super-Pro Test Kit Refill PS102CS .5OZ Oto/ Phenol - K102CBX/SCP
    SKU: K102CBX/SCP
    $17.80
    $27
    Out of stock
  • Save 33%
    Poolmaster Solution #2 Phenol Red PS9757 8OZ Pro Series - 22399
    SKU: 22399
    $16.57
    $25
    In stock
  • Save 33%
    Poolmaster 3-WAY Test Kit with Case PS899 Supreme Series - 22340
    SKU: 22340
    $29.95
    $45
    In stock
  • Save 34% Out of stock
    Poolmaster 5-WAY Dpd Test Kit with Case PS975 Professional Series - 22339
    Poolmaster 5-WAY Dpd Test Kit with Case PS975 Professional Series - 22339
    SKU: 22339
    $34.78
    $53
    Out of stock
  • Save 35%
    Poolmaster .5OZ Oto Reagent PS899OTO Supreme Series - 24241
    SKU: 24241
    $15.58
    $24
    In stock
  • Save 33%
    AquaChek 7-WAY Test Strip 50CT - PS030
    SKU: PS030
    $31.86
    $48
    In stock
  • Save 33% Out of stock
    Poolmaster Solution #1 Oto PS9756 8OZ Pro Series - 22398
    SKU: 22398
    $25.24
    $38
    Out of stock
  • Save 33% Out of stock
    Poolmaster #1 Dpd Free Chl Tabs 250BX - 23249
    SKU: 23249
    $32.57
    $49
    Out of stock
  • Save 33%
    Poolmaster Cl Neutralizer Solution .5OZ Sol #4 - 22414
    Poolmaster Cl Neutralizer Solution .5OZ Sol #4 - 22414
    SKU: 22414
    $17.99
    $27
    In stock
  • Save 35%
    Poolmaster Solution #1 Oto PS9751 1OZ Pro Series - 22391
    SKU: 22391
    $16.88
    $26
    In stock
  • Save 35% Out of stock
    Poolmaster Solution #5 Alk Indicator PS9755 .5OZ Pro Series - 22395
    SKU: 22395
    $15.58
    $24
    Out of stock
  • Save 31%
    PoolStyle 22290 5-Way Test Kit with Reagent Round Block
    Poolmaster with Reagents - Round Block 5-WAY Test Kit - 22290
    SKU: 22290
    $39
    $57
    In stock
  • Save 34% Out of stock
    Poolmaster 5-WAY Oto Test Kit with Case PS974 Professional Series - 22341
    SKU: 22341
    $32.93
    $50
    Out of stock
  • Save 33%
    Poolmaster Dpd Free Chl Tabs #1 250/BOX - 23269
    Poolmaster Dpd Free Chl Tabs #1 250/BOX - 23269
    SKU: 23269
    $32.57
    $49
    In stock
  • Save 33%
    Poolmaster Phenol Solution F/ 3-WAY .5OZ Red - 24271
    Poolmaster Phenol Solution F/ 3-WAY .5OZ Red - 24271
    SKU: 24271
    $17.99
    $27
    In stock
  • Save 33%
    Poolmaster Phenol Red Solution 8OZ Sol #2 - 22419
    Poolmaster Phenol Red Solution 8OZ Sol #2 - 22419
    SKU: 22419
    $17.25
    $26
    In stock
  • Save 34%
    Poolmaster OTO SOLUTION F/ 3-WAY .5OZ - 24261
    Poolmaster OTO SOLUTION F/ 3-WAY .5OZ - 24261
    SKU: 24261
    $12.36
    $19
    In stock
  • Save 36%
    Poolmaster Acid Demand Solution 1OZ Sol #3 - 22413
    Poolmaster Acid Demand Solution 1OZ Sol #3 - 22413
    SKU: 22413
    $12.74
    $20
    In stock
  • Save 33%
    Poolmaster Lag Screw, 5/8- 5 X 3" Plain Steel - 22415_alt1
    SKU: 22415
    $17.99
    $27
    In stock
  • Poolmaster 50 lb Bag Granular White Insecticide - CALNITRATE50 - 22418
    Poolmaster 50 lb Bag Granular White Insecticide - CALNITRATE50 - 22418
    SKU: 22418
    View product
    See options
  • Save 36%
    Poolmaster OTO SOLUTION PRO 1OZ SOL #1 - 22411
    Poolmaster OTO SOLUTION PRO 1OZ SOL #1 - 22411
    SKU: 22411
    $12.74
    $20
    In stock