Application: used for air compressed and transmit with brass/stainless 1/4”,3/8” and 1/2” NPT fittings, vehicle inflator hose and other air delivery with iron fittings . Construction: 1. Type: single hose; 2. Appearance: smooth surface, red, black, blue, yellow or other color; 3. Structure: The middle layer are Man-made synthetic fiber , both inner and outer are made of SBR natural rubber; 4. ...