ANSUL Foam Hardware ( Line Proportioner, Brass, PL-60 (60 gpm), 6% Conc. Orifice ) Part Number : 75656 Material : Line Proportioner, Brass, PL-60 (60 gpm), 6% Conc. Orifice Thread Size/Type: ………….. Weight (lbs): 5 Part Description: …………..