Description Brand Microcosm OKMOItem No M8Item Name Pump for steam engineUsage The feed water pump is used to supply the boiler with fresh water brass nut with stainless steel piston and ball valves Screw fitting is 1 4 X 40 TPI Brass fittings with 3MM Overall dimensions are Length 54MM width 14MM high 95MM weight 120G piston diameter 7MM travel 8MM Feature Is a small hand operated piston type pump used to replenish boiler water while boiler is in use and under pressure Also used to hydrostatically test your boiler and other applications Package Included 1 Xfeed water pump