1 1/4"NPT GAS REG W/ORIF/SPRNG

1"NEED SPRING RANGE & ORF SIZE

1x1.25"IRV,1/2"Orif,5-6.5"Sprg

3/4"IRV,1/2"Orif,4-9"GraySprng

3/4" SPRING & ORIFICE SIZE

3/4x1"IRV,3/8"Orif,5.5-8"Sprng

SR09505 B31R 1"

1" 3/16"ORF 11-16"WC REG

2"REG 1/2"ORF BLACK SPRINGS

2"NPT NEED SPRING/ORIFICE