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Test Kits

- Filter Accessories (95)
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- Water Care / Conditioning (142)
  - Water Conditioner (28)
  - Bacteria Supplements (11)
  - Plant Fertilizer (13)
  - Marine (34)
  - Test Kits (36)
- Heaters & Thermometers (26)
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- Hanna Instruments
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Hanna Instruments Nitrite Ultra Low Range Colorimeter

$69.00
Hanna Instruments Colorimeter Phosphate LR

$66.75
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Hanna Instruments Colorimeter Copper HR

$59.00
More options

API 5 in 1 Aquarium Test Strips

$9.89
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API Nitrite Test Kit

$13.75
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API High Range pH Test Kit

$9.89
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API pH Test & Adjuster Kit

$16.50
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API Marine Saltwater Master Test Kit

$49.00
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API GH & KH Test Kit

$13.75
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Salifert Ammonia Test Kit

$18.75
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Hanna Instruments Marine Nitrate LR Checker Reagent 25 Pack

$20.00
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Hanna Instruments Marine Colorimeter Calcium

$74.00
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API Copper Test Kit

$14.75
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API pH Test Kit

$9.89
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Hanna Instruments Marine Colorimeter Alkalinity dKH

$69.00
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API Ammonia Test Kit

$17.75
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API Phosphate Test Kit

$19.50
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API Freshwater Master Test Kit

$49.00
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API Marine Reef Master Test Kit

$55.00
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API Nitrate Test Kit

$17.75