... a standard motor, stub shaft, mechanical compression coupling (KS-5 with pin bolts), adaptor, back plate, impeller, pump casing and shaft seal ... legs and Shaft seals. The pump may also be equipped with a double mechanical shaft seal. Features:Motor:0.55- ... rolled stainless steel plateInvestment casting impeller:AISI 304/316LContact parts with material:Viton,EPDMGasket:SSC-Sic/EPDMInternal surface:Ra≤0. ...