The General Hydroponics TNC centrifugal inline water pump is powerful and dependable. The General Hydroponics TNC water pump moves 1250-1268 GPH through 1" pipe thread fittings and has a dependable ceramic/graphite seal. The General Hydroponics TNC water pump is used in our AeroFlo2 60 units, and can be used in most other hydroponic methods. Using a inline pump instead of a submersible pump keeps the heat out of your reservoir and/or water source to keep water temperatures cool.