ANSUL Foam Hardware ( Line Proportioner, Brass, PL-60 (60 gpm), 3% Conc. Orifice ) Part Number : 75650 Material : Line Proportioner, Brass, PL-60 (60 gpm), 3% Conc. Orifice Thread Size/Type: ………….. Weight (lbs): 5 Part Description: …………..