Single DI Canister Bulk Reef Supply The Shadow® Overflow is a

The Shadow® Overflow is a device that is used to divert water flow from your aquarium into your filtration sump

Add the I/O Breakout Box to your current aquarium controller an easy way to connect up to six external switch inputs

Another feature

but if you do not have a controller

Combine with Neptune DoS for automated dosing

Single DI Canister Bulk Reef Supply The Shadow® Overflow is aSingle Stage deionization canister. Perfect for adding a DI stage to your RO system or adding an additional stage to your current system. Comes with the Canister, Cartridge full of DI resin, and 5 feet of 1 4" tube. Features Perfect for adding a DI stage to your RO system or adding an additional stage to your current system. Canister comes with cartridge full of DI Resin Cartridge is refillable 5 feet of tube " Port Easily install in less than a minute