Superior Pump 91660 Tankless Water Hater Descaler Pump Kit. This descaler Pump Kit is designed to clean and descale most Tankless Water Heaters. Complete kit includes 1/6 hp pump, 3.5 gallon pail with screw top lid, two 6 ft. stainless steel hoses and one 7oz pack of descaler powder. Superior Pump builds pumps that are truly built to last and are 100% factory tested. Superior Pump uses quality components including solid copper motor windings, reinforced thermoplastic and electronically controlled split capacitors. Pump included in kit is a Superior Pump model number 91016 1/6 HP oil free submersible utility pump. 91016 Pump will move water up to 1920 GPH and includes a 3/4 in. garden hose adapter. This 1/6 HP pump is CSA certified and backed by a 1 year. Superior Pump is a family owned and operated Pump Company specializing in residential/light commercial duty pumps. Headquartered in Minneapolis, Minnesota, Superior Pump was founded in 1999 after spending years in the pump industry dating back to the 70's, and with a plumbing background starting in St. Paul Minnesota dating all the way back to 1885. Superior Pump adheres to our strong core family values, selling the absolute highest quality product possible at a fair cost. We concentrate on the little details when building a pump, putting all of them together to make one of the most durable pumps on the market.