All Newest Products

207 Performance Canister Filter, up to 45 US Gal (220 L)   20-45 US Gal (60-220 L) As the world’s best-selling performance canister filter, the 7...

307 Performance Canister Filter up to 70 US Gal (330 L)   40-70 US Gal (90-330 L) 9.5 L x 7 W x 16.5 H" (24 L x 18 W x 42 W cm) ...

407 Performance Canister Filter, up to 100 US Gal (500 L)   50-100 US Gal (150-500 L)  9.5 L x 7 W x 19.3 H" (24 L x 18 W x 49 H cm) As the world’...

he HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwate...

HYDROS Klir Adapter Kit This kit enables you to run the Klir Filter from the HDYROS Control.  The kit includes:   1 x Klir Drive Port Adapter 1 x W...

Dual Inline TDS Sensor The HYDROS Digital Inline TDS Meter has two sensors to monitor the water quality of any RO/DI system. The corrosion-resistan...

HYDROS Command Bus Terminator

HYDROS Leak Sensor - Sense Port Accessory The HYDROS Leak Detection Sensor is a solid surface leak detector that can sense when freshwater or saltw...

Reef Octopus O-Ring

Klir 7 Filter Motor Assembly

Please note: CONTROL XS ONLY - Nothing else is included.   It doesn’t just make SENSE, it Controls too!   About HYDROS Control X...

Please note: CONTROL X4 ONLY - Nothing else is included. Achieve Ultimate Aquarium Control with the HYDROS Control X4HYDROS Control X4 is a powerf...

Please note: CONTROL 2 ONLY - Nothing else is included.   About Control 2 HYDROS Control 2 is a small, general-purpose aquarium controller capable ...

HYDROS Waterproof IP68 Temperature sensor - Sense Port Accessory The HYDROS Slim Temperature Sensor is only 1.6” long and 0.32” wide. Its all-black...

Protect your aquarium, home, or office from total disaster   The HYDROS Rope Leak Detection Sensor is a flexible line that detects the p...

CoralVue HYDROS 5-PIN System Command Bus Cable   This 6ft long HYDROS System Command Bus Cable allows HYDROS devices to communicate and ...

HYDROS 9ft Drive 2-Pin Extension Cable   This 9ft long extension cable for HYDROS Drive Accessories for Control 2 and Control 4.

HYDROS 9ft Sense 4-Pin Extension Cable   This 9ft long extension cable for HYDROS Sense Accessories for Control 2 and Control 4.