Test Kits

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Low Range pH Test Kit 6.0-7.6

$8.39
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SKU: APH1080
-24%
Out of stock

Magnesium (Mg) Test Kit 0.5oz 15ml

Original price was: $50.39.Current price is: $38.39.
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SKU: SER253

Magnesium Pro Reagent Refill Kit

$24.99
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SKU: RS1012

Magnesium Pro Test Kit 100 Tests

$41.99
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SKU: RS1001
-20%

Master Fritz Test Kit Fresh and Saltwater

Original price was: $39.99.Current price is: $31.99.
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SKU: FR239
-14%

Nitrate (NO3) Test Kit 0.5oz 15ml

Original price was: $17.84.Current price is: $15.29.
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SKU: SER465
-20%

Nitrate Fritz Test Kit Fresh and Saltwater

Original price was: $15.99.Current price is: $12.79.
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SKU: FR233

Nitrate Pro Test Kit 100 Tests

$54.99
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SKU: RS1004

Nitrate Test kit

$13.99
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SKU: APH1015

Nitrite (NO2) Test Kit 0.5oz 15ml

$14.69
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SKU: SER464
-20%

Nitrite Fritz Test Kit Fresh and Saltwater

Original price was: $13.99.Current price is: $11.19.
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SKU: FR232

Nitrite Test Kit

$11.98
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SKU: APH1016