United Pump UP-170, Mag Drive Fountain,Statuary & Pond Pump, 170 gph, Submersible or Inline, 6' cord Energy saving, low operating cost, mag driven rotor for quiet and reliable performance, L 3-1/2" W 2" H 3-1/8", Fully adjustable flow from 0-170 gallons per hour, ceramic shaft for ultimate durability, great for hydroponic & aquaponics Adjustable flow pump, Complies to all international and domestic safety standards (UL listed). Outlet 1/2", hydroponics pump, aquaponics pump, adjustable flow, Outlet 1/2" female threaded. UL approved, Can be run inline and out of water for easier accessibility and maintenance.