Specifications include, but are not limited to: I Diaphragm Meter, 250 C.F.H., cubic foot, temp.comp., 5 PSI, 1/2" differential, 20 LT (1"), 4 Dial, 2 pound index. (GG1 - GUC Stock# 505850) II Diaphragm Meter, 250 C.F.H., cubic foot, temp comp., 5 PSI, ½” differential, 20 LT (1”), 4 Dial, STD index. (GG1 - GUC Stock # 505851) Rotary Meter, 3.5M, 100's of cubic foot, 175 PSI, 10 foot instrument drive, horizontal mount. (G9 - GUC Stock # 504870) Do Not Quote Rotary Meter, 9M, 100's of cubic foot, 175 PSI, 10 foot instrument drive, horizontal mount. (G11 - GUC Stock # 503700) Do Not Quote III Diaphragm Meter, 630 C.F.H., cubic foot, temp. comp., 25 PSI, 1/2" differential, 30 LT (1 1/4"). (G19 - GUC Stock # 505660) IV Diaphragm Meter, 1000 C.F.H., cubic foot, temp. comp., 100 PSI, 1/2" differential, 1 1/2" FPT. (G20 - GUC Stock # 505680)