Water Testing & Control

Monitor and manage pool chemistry with test kits, sensors, and controllers.

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    Poolmaster Solution #4 Chlorinator Neutralizer PS9754 .5OZ Pro Series - 22394
    SKU: 22394
    $15.12
    $23
    Out of stock
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    Poolmaster Solution #5 Alk Indicator PS9755 .5OZ Pro Series - 22395
    SKU: 22395
    $15.12
    $23
    Out of stock
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    Poolmaster OTO SOLUTION F/ 3-WAY .5OZ - 24261
    Poolmaster OTO SOLUTION F/ 3-WAY .5OZ - 24261
    SKU: 24261
    $12
    $18
    In stock
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    Poolmaster Solution #3 Acid Demand PS9753 1OZ Pro Series - 22393
    SKU: 22393
    $16.38
    $25
    Out of stock
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    Poolmaster Solution #1 Oto PS9756 8OZ Pro Series - 22398
    SKU: 22398
    $24.50
    $37
    Out of stock
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    AquaChek 7-WAY Test Strip 50CT - PS030
    SKU: PS030
    $30.93
    $47
    Out of stock
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    Poolmaster Solution #2 Phenol Red PS9757 8OZ Pro Series - 22399
    SKU: 22399
    $16.08
    $25
    In stock
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    Poolmaster #1 Dpd Free Chl Tabs 250BX - 23249
    SKU: 23249
    $31.62
    $48
    Out of stock
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    Poolmaster .5OZ Oto Reagent PS899OTO Supreme Series - 24241
    SKU: 24241
    $15.12
    $23
    In stock
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    Poolmaster Phenol Red Solution 8OZ Sol #2 - 22419
    Poolmaster Phenol Red Solution 8OZ Sol #2 - 22419
    SKU: 22419
    $16.74
    $26
    In stock
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    Poolmaster 5-WAY Oto Test Kit with Case PS974 Professional Series - 22341
    SKU: 22341
    $31.97
    $48
    Out of stock
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    Poolmaster OTO SOLUTION PRO 1OZ SOL #1 - 22411
    Poolmaster OTO SOLUTION PRO 1OZ SOL #1 - 22411
    SKU: 22411
    $12.36
    $19
    In stock
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    Poolmaster Lag Screw, 5/8- 5 X 3" Plain Steel - 22415_alt1
    SKU: 22415
    $17.46
    $27
    In stock
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    Poolmaster Dpd Free Chl Tabs #1 250/BOX - 23269
    Poolmaster Dpd Free Chl Tabs #1 250/BOX - 23269
    SKU: 23269
    $31.62
    $48
    In stock
  • Poolmaster 50 lb Bag Granular White Insecticide - CALNITRATE50 - 22418
    Poolmaster 50 lb Bag Granular White Insecticide - CALNITRATE50 - 22418
    SKU: 22418
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    Poolmaster Phenol Solution F/ 3-WAY .5OZ Red - 24271
    Poolmaster Phenol Solution F/ 3-WAY .5OZ Red - 24271
    SKU: 24271
    $17.46
    $27
    In stock
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    Super-Pro .5OZ Phenol Red PS102PHE Deluxe Series - K102DIS/PHE
    SKU: K102DIS/PHE
    $10.44
    $16
    Out of stock
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    Poolmaster Cl Neutralizer Solution .5OZ Sol #4 - 22414
    Poolmaster Cl Neutralizer Solution .5OZ Sol #4 - 22414
    SKU: 22414
    $17.46
    $27
    In stock
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    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
    $33.77
    $51
    Out of stock
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    Poolmaster Acid Demand Solution 1OZ Sol #3 - 22413
    Poolmaster Acid Demand Solution 1OZ Sol #3 - 22413
    SKU: 22413
    $12.36
    $19
    In stock
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    Poolmaster Phenol Solution 1OZ Sol #2 Red - 22412
    Poolmaster Phenol Solution 1OZ Sol #2 Red - 22412
    SKU: 22412
    $12.36
    $19
    In stock
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    Kokido .5OZ Oto PS102OTO Deluxe Series
    Kokido .5OZ Oto PS102OTO Deluxe Series - K102DIS/OTO
    SKU: K102DIS/OTO
    $10.44
    $16
    Out of stock
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    Poolmaster 3-WAY TEST KIT-W/CASE - 23260
    Poolmaster 3-WAY TEST KIT-W/CASE - 23260
    SKU: 23260
    $28.94
    $44
    In stock
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    AquaChek 4-WAY Test Strip 50CT - PS031
    SKU: PS031
    $15.21
    $23
    Out of stock