G1/4 Thread Vent Valve Auto Exhaust Connector Plug for Computer Water Cooling Descriptions: This exhaust valve plug adopt of raw materials and professional environmental coating. Electroplating process, shiny and bright, roll lace design, beautiful appearance. Automatic exhaust pressure, is a great exhaust value plug in water cooling system. Features: Adopt of raw materials and professional environmental coating. Electroplating process, shiny and bright, roll lace design, beautiful appearance. Easy to install, just twist tight the screw. Good sealing, with silica gel seal ring. Specifications: Thread specification: G1/4 , actual outer diameter is 12.9mm Material: brass Surface treatment: chromium plating Seal: with silicone seal ring Diameter: 1.8cm/0.7inch Action: automatic exhaust pressure Quantity: 1 Weight:11g Package Included: Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.