Hose Master Annuflex Stainless Steel 321 Flexible Hose Assembly, 1/2" Carbon Steel NPT Male x 150 psi Malleable Iron Female NPT Union Connection, 300 PSI Maximum Pressure, 18" Length, 1/2" ID Flexible hose assembly for chemical, gas, oil, or hydraulic transfer operations Hydroformed, corrugated 321 stainless steel tube for uniform wall thickness, flexibility, and resistance to high temperatures Single-braid 304 stainless steel reinforced cover for strength Maximum working temperature of 850 degrees F One factory-installed carbon steel male NPT connection and one factory-installed malleable iron female NPT union connection