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Shop All Controllers & Testing

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.
97 results
Neptune Systems Solenoid Valve Neptune Systems Solenoid Valve
Starting at $29.95
IN STOCK
Neptune Systems LDK Leak Detection Kit Neptune Systems LDK Leak Detection Kit
Starting at $149.95
IN STOCK
Clearance
Portable Refractometer Portable Refractometer
Starting at $31.49
IN STOCK
PondCare Pond Master Liquid Test Kit   PondCare Pond Master Liquid Test Kit
Starting at $23.22
IN STOCK
New Product
Hanna Marine Salinity Tester Hanna Marine Salinity Tester
Starting at $69.00
IN STOCK
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