Arad ADM40 MS 40 mm 1-1/2 inch BSP(M) water flow meter 250 lpm 10 bar (145 psi)Arad ADM40 MS 40 mm 1 1 2 inch BSP(M) water flow meter 250 lpm 10 bar (145 psi) 250 lpm max 10 bar (145 psi) max Arad Multi Jet type magnetic water meter features: only one moving part (the impeller) in contact with the water minimum wear and utmost reliability magnetically driven sealed register wide clearances in the measuring chamber and negligible area of contact between static and moving parts high reliability even in hard water