Aquarium External Three Way Water Change Exchange Connector Filter from Canister
Use your canister as a pump whist doing water changers. Simply turn the tap and divert all your tank water off to a container, drain or outside. Draining you tanks water ready for its water change. Easy to install just cut your canisters return piper and connect the connectors to the into the pipe. Then add an addition 12mm or 16mm off to where you want the water to goto.