United Pump UP-270 Fountain Statuary Hydroponics & Pond Pump, 290 gph, Adjustable flow, mag drive, submersible or inline, 12' cord Energy saving, low operating cost, mag driven rotor for quiet and reliable performance, L 4-3/8 Fully adjustable flow from 0-295 GPH (non-adjustable when used inline) Ceramic shaft for ultimate durability, great for Hydroponic chemicals Adjustable flow pump, Complies to all international and domestic safety standards (UL listed).,Outlet 1/2" UP models have 3-wire cord with grounded 3-prong plug.