heat pump swimming pool High efficient:up to 75% energy saving Pretty outlook:White curlour steel Stable and safety heat pump swimming poolMDY50DRated input power:4.6 KWRated heating capacity:21KWRated voltage:380VRated current:9ARated frequency:50HZOutlet water temperature:35degCirculating pipe:DN50mmDimentions:660*660*960mmWeight:113KgNoise:<60DbLevel of security:IPX4Electric shock protection ...