The Basement Watchdog 1/2 HP Thermoplastic Primary Sump Pump with Tether Switch combines durable components, superior engineering, and affordability. You get the best of both worlds: great quality and a great price. The SP-50T sump pump is designed with an energy-efficient (PSC) permanent split capacitor motor. It pumps up to 3900 GPH at 0 ft. lift (3100 at 10 ft. lift) while only pulling 5.5 Amps--saving you money on electric bills. The components are engineered for endurance and longevity: upper and lower ball bearings, a carbon ceramic seal, stainless steel hardware, 1-1/2 in outlet, a thermoplastic impeller and an adjustable tether switch. The result is an extremely dependable sump pump for you and minimized wear over time. With premium components and non-corroding thermoplastic housing, the SP-50T sump pump is quality made affordable.