1. 【】TMCRAFT keg coupler features a chrome-plated brass body and stainless steel probe as well as a more sturdy lever handle, which meet ergonomic standard. The special construction will ensure wear reduction and retain beer flavor after long periods use. 2. 【Satisfactory Sealing】The pressure relief valve of keg tap coupler will automatically open on about 55 psi, allows excessive pressure gas to escape before it enters the keg. Silicone check valves and beer line washers between the coupler and the barb tailpiece give a great sealing performance to prevent leaking and backflow. 3. 【Complete Coupler Kit】Equipped with standard G 5/8 thread for ball lock fitting. This D coupler has come with all necessary parts including beer & gas barb tailpieces to fit I.D 5/16" draft beer line gas brewing tubing. 2 tailpiece set & hose clamps are provided so that you haven’t need to buy them separately. 4. 【High Compatibility】 This TMCRAFT keg coupler is compatible with all American D system Sankey kegs so that can be perfect vessel for various kinds of carbonated drinks. It can also meet the need of heavy use in high-demand business environments such as bars, restaurants, and breweries. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.