Features 1、Made of high quality metal, durable for using. 2、Compact size, easy installation. 3、International standard G1/4 thread connector. 4、Suitable for computer water cooling system. 5、The hole diameter of this connector is 18mm/0.7in. Specification Descriptions: This adapter adopts of high quality metal material, durable for using. It is suitable for computer water cooling system. Convenient to use, easy to install. Features: Made of high quality metal, durable for using. Compact size, easy installation. International standard G1/4 thread connector. Suitable for computer water cooling system. The hole diameter of this connector is 18mm/0.7in. Specification: Thread: G1/4(International general standard) Material: Metal Color: Black Size: Approx. 20 x 20 x 10mm / 0.8 x 0.8 x 0.3in Hole size: Approx. 18mm / 0.7in Weight: 16g Quantity: 1pc Package Include: 1 x Connector for Computer Water Cooling System