CONTACT US DIRECTLY FOR FREE & PREPAID RETURNS 5 Pieces 1/4" Quick Connect Air Hose Fittings Female Coupler Connector Plug Kit 5 Pieces 1/4" Quick Connect Air Hose Fittings Female Coupler Connector Plug Kit 【Material】: Air hose fittings are made of all steel structure design plated with high quality brass, high temperature and high pressure resistance, strong corrosion resistance long service life. 【Scientific Design】: 6-ball bearing and knurled sleeve design ensures a good seal of the air hose fitting and provides better grip when installing and disconnecting the 1/4 inch air hose fitting. 【Application】: Air hose fittings are suitable for professional workplaces and 1/4 inch air hose fittings can be connected to air hoses, air compressors, pressure washers and other pneumatic tools. 【Reference】: 5 pieces of 1/4 inch female air hose fittings with maximum operating pressure of 300 PSI and temperature up to 250℉. 【Compatibility】: Air hose fittings are compatible with industrial air plugs and air quick connectors, air hose fittings for convenient matching with other manufacturers. REVIEWS The product came very well packaged. I'm very happy. thank you for everything. Seller strongly recommended. This is great! I definitely recommend! Product looks amazing Delivery was fast. Excellent seller, great communication. I advise everyone