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Controllers & Testing Equipment allow convenient measurement of important aquarium parameters. Choose from our great selection to help simplify maintenance of freshwater or saltwater aquariums. High-tech digital controllers and monitors boast precision lab-grade quality to streamline testing and monitoring of vital aquarium water parameters.
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Controllers & Testing Equipment allow convenient measurement of important aquarium parameters. Choose from our great selection to help simplify maintenance of freshwater or saltwater aquariums. High-tech digital controllers and monitors boast precision lab-grade quality to streamline testing and monitoring of vital aquarium water parameters.
112 results
112 results

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Brand
Price
Aquarium Type
Tests For
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Red Sea Seawater Refractometer Red Sea Seawater Refractometer
Starting at $69.99
IN STOCK
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Instant Ocean Hydrometer Instant Ocean Hydrometer
Starting at $9.99
IN STOCK
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Red Sea Magnesium Pro Test Kit Red Sea Magnesium Pro Test Kit
Starting at $38.99
IN STOCK
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API pH Test Kit API pH Test Kit
Starting at $7.98
IN STOCK
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API Freshwater Master Test Kit API Freshwater Master Test Kit
Starting at $35.98
IN STOCK
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API 5 in 1 Aquarium Test Strips API 5 in 1 Aquarium Test Strips
Starting at $12.98
IN STOCK
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API Nitrite Test Kit API Nitrite Test Kit
Starting at $11.98
IN STOCK
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API Saltwater Master Liquid Test Kit API Saltwater Master Liquid Test Kit
Starting at $35.98
IN STOCK
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API Reef Master Liquid Test Kit API Reef Master Liquid Test Kit
Starting at $32.79
IN STOCK
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HYDROS 3.5mm Adapter Cable HYDROS 3.5mm Adapter Cable
Starting at $9.99
IN STOCK
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HYDROS ATO Kits HYDROS ATO Kit
Starting at $79.99
IN STOCK
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HYDROS Control 2 HYDROS Control X2
Starting at $159.99
IN STOCK
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HYDROS Control 2 Starter Pack HYDROS Control X2 Starter Pack
Starting at $199.99
IN STOCK
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HYDROS Control 4 HYDROS Control X4
Starting at $349.99
IN STOCK
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HYDROS Control XS HYDROS Control XS
Starting at $159.99
IN STOCK
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HYDROS Control XS Starter Pack HYDROS Control XS Starter Pack
Starting at $199.99
IN STOCK
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HYDROS DC Micro Pump HYDROS DC Pump
Starting at $24.99
IN STOCK
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HYDROS DC Solenoid Water Valve HYDROS DC Solenoid Water Valve
Starting at $24.99
IN STOCK
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HYDROS Digital Inline TDS HYDROS Digital Inline TDS
Starting at $49.99
IN STOCK
112 results
LAQ-AZ-WEB-01-P