AMCO REGULATOR 1803B2 1813B
Size : 1" , 2" , 1.5 " NPT Spring : 1 - 2 psi, 1.5 - 2.5 psi, 2 - 3 psi, 3 - 5 psi, 8.5 - 14 " WC, 14 - 28 " WC 3.5-7.5" WC, 6 - 15" WC, 12-28" WC, 24-48" WC, 42" WC - 2 psi Orifice : 3/ 4 " , 7/ 8 " , 5/ 8 " , 3/ 8 " 3/ 16" , 1/ 4" , 3/ 8" , 1/ 2"