Features PACKAGE INCLUDES --- This kit includes two 1/2 inch NPT threaded 1/2 valve body air couplers and two 1/2 NPT threaded 1/2 housing air plugs. 1/2IN HIGH FLOW VALVE BODY --- This air hose connector is suitable for high flow air tools, and the 1/2 inch valve body provides up to 70% air flow compared to the 3/8 inch valve body. Ensure that the required thread size is 1/2 inch NPT thread. COMMON USE --- This accessory set can be connected to accessories of the same type and size from other brands. 300PSI maximum working pressure, temperature up to 250 ℉. 6 LOCKING BALLS --- There are six locking balls in the connector that can securely secure the plug. The sleeve protection device helps to reduce the possibility of accidental disconnection. DURABLE STRUCTURE --- Heat treated aluminum alloy structures have high corrosion resistance and long service life. There is a thickened coating to increase durability and reliability. Specification: Item Type: 1/2in NPT Air Hose Connector Material: Aluminum Alloy Joint Size (Male, Female): 1/2in NPT Scope of Application: Air hose quick connect connector Package List:4 x 1/2in NPT Air Hose Connector Package List 4 x 1/2in NPT Air Hose Connector