130PCS Blue Full NPT Air Hose Fitting Assortment Kit - High-Strength PBT Plastic Push to Connect Fittings for PU Hoses, Heavy-Duty 145 PSI Leak-Free

["This 130-piece air hose fitting kit features a full range of 1/8\" 1/4\" 3/8\" 1/2\" NPT threaded fittings, covering all common NPT sizes for pneumatic systems. It fully meets the connection needs of PU air hoses in air compressors, pneumatic tools, trailer repairs and workshop maintenance, no need for extra fitting purchases.","Crafted from premium high-strength PBT plastic, these fittings deliver superior corrosion resistance, aging resistance and flame retardancy. The industrial-grade plastic material is wear-resistant and durable, standing up to harsh job site and workshop conditions for long-lasting performance.","Built-in stainless steel locking claws and high-quality silicone gaskets ensure a tight, firm lock and 100% leak-free seal—even after thousands of plug and disconnect cycles. The precision sealing structure prevents air leakage and pressure loss, keeping your pneumatic system running efficiently.","Rated for working pressures from vacuum to 145 PSI and operating temperatures of 32℉ to 140℉, this kit delivers stable and consistent performance in various harsh environments. It’s perfect for indoor and outdoor heavy-duty use, meeting all your daily pneumatic connection demands."]