Feature 16 Locking Balls: There are six locking balls in this air hose connector to securely hold the air hose plug safely and reliably. 2Excellent Aluminum Alloy Material: This air hose connector is made of excellent aluminum alloy material, which is sturdy and durable, not easy to be damaged, and has a long service life. 3Thickened Plating: This air hose connector features a thickened plating for high erosion resistance and long service life. 43/8 NPT Thread: This air hose fitting features a 3/8 NPT thread, which makes installation very easy, you just need to align the threads to screw the vessel onto the corresponding device. 5Good Performance: This air hose fitting has good performance and is resistant to high pressure and high temperature, with a maximum working pressure of 300 PSI and temperatures up to 250 F.Item Type: Air Hose FittingsMaterial: Aluminum AlloyConnector Size (Male or Female): 3/8 Inch NPTConnection Type: Quick ConnectApplication: Air Hose Quick Connect Fittings .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List4 x Air Hose Fitting