This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in...

This 24VDC powered, normally-closed (NC), solenoid valve has push-fit tubing input and outputs designed for standard 1/4″ tubing. The electrical connection on this solenoid valve fits the DC24 accessory ports found on the FMM, 1Link, and Energy Bar...

Prevent floods by adding the super-easy-to-install Flood Guardian to your RO or RO/DI System. Never worry about forgetting to turn off your RO/DI system or overfilling your reservoir again! Simply mount the magnetically-mounted sensor to any...

Eshopps’ Float Valve offers a simple solution to help maintain proper water level.Use the Eshopps’ Float Valve as part of an automatic top-off system you create to replenish aquarium water lost through evaporation. Adjustable acrylic mounting...

5 US Gallons - High-density polyethylene construction withstands temperatures up to 180°F.

Usually used with aquarium accessories like RODI inputs, calcium reactor feed lines etc., this flow sensor can be placed in line with the flow on 1/4″ tubing, connected to the FMM, and communicate to your Apex the flow rate of water...

Float valves are used to shut off RODI water when a certian level is reached.

IceCap Magnetic Mount Float Valve comes with universal tubing retainer and tubing

5 US Gallons - High-density polyethylene construction withstands temperatures up to 180°F. Choose the options you need, some you might have so they are optional.