BOMGIE Hot Water Recirculating Pump 3-Speed 115V 96W,40LPM Cast Iron Circulation Pump Instant Water Heater w/Adapter,Automatic Male Thread Brass Water Flow Switch,Heated Flooring System (HBL15-60A) Recommendations TOPWAY 3/4" NPT 110V Hot Water 3-Speed Circulation Recirculating Pump Circulator ...