" WATTS BRASS & TUBULAR" HOT WATER RECIULATING PUMPWhole House Hot Water Recirculating Pump Recirculating Pump Mounts To The Hot Water Outlet On The Water Heater & The Sensor Valve Mounts Under The Furthest Lavatory In The House Run Turns Plumbing Into A Re-Circulating Loop Every Faucet Will Have Hot Water Instantly On/Off Timer On Pump Activates The Pump When You Need Hot Water Saves Over 10,000 Gallons A Year In Wasted Water 120V Pump Motor With 10" Grounded Plug Easy To Install