GAS CONNECTOR COATED 1" OD X 36"* 1" OD 3/4" MIP x 3/4" FIP fittings 304 stainless steel with protective PVC coating Larger diameters sup ply high Btu"s for applications such as gas pack/rooftop HVAC units commercial water heaters and furnaces an d mobile home connections Design certified for ANSI Z21.24 AGA #3-87 and IAPMO TSC9 #501064 has protective PVC coating Flow Capacity Natural BTU: 255 900 Flow Capacity LP BTU: 409 440