electric pump feature: 1) three gear motor 2) max input power: ... ) offer cast iron,copper and stainless steel pump body electric pumpa) specificationModelMaterialsSpeedCurrent (A)Voltage (V)Power(W)Max.head(m) Max.flow ... energy,supply hot water and keep warm in cycle,etc.c) the ceritifications we appriovedCE certification,UL certification,GS certification,ROHS ...