[SIZE] The safety copper valve shift "D" is 8mm x 6mm with a length of 14.5mm, compatible with many knobs. Control valve inlet and outlet thread is 7/16 inch -24 UNEF, thermocouple valve thread is M8*1. [PREMIUM MATERIALS] Gas control valve kits are made of brass with heavy-duty construction for rugged durability, built and tested under strict quality control standards, and snap easily into place. [APPLICATION] This gas safety control valve with integrated igniter is designed to repair and replace old propane gas and natural gas main control valves on outdoor gas heaters. Maximum BTU rating: 50000, working pressure 65 mbar. [EASY TO INSTALL] This gas safety control valve kit is easy to install. Please confirm the size is compatible before purchase and ensure the installation position is accurate. Color: Brass Material: Brass Package Contents: 1 x Gas Safety Control Valve Only the above package content is included; other products are not included. Note: Lighting and different displays may cause the color of the item in the picture to be slightly different from the actual product. Measurement allowance is +/- 1-3 cm.