VR8300A4508 Hw Combo Gas Valve 24V standing pilot 3/4 X 3/4: Opening Characteristics (standard, step): Standard Inlet / Outlet Size (In.): 3/4 X 3/4 Pressure Regulator Settings: 3.5 In. Wc (0.87 kPa) Temperature Range: 0 To 175F (-18 To +79C) Includes: Qty. 2 Of 3/4 x 1/2 Reducing Bushings Natural Gas To Propane (L.P.) Conversion Kit: Yes All Gas Valves Should Be Installed By A Licensed Professional. FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE! Helpful Accessories: 25551 Rectorseal Pipe Thread Sealant #5 - 1/2 Pint 16149 Bramec White Teflon Tape 3/4" X 520' 29436 Gas Pressure Test Kit Manometer J/B Black Gas Pipe Fittings