Wholesale - 50 FOOT 3/8'' HYBRID ULTRA-FLEX AIR HOSE. .- Inovative construction retain superior flexibility in axtreme cold and hot outdoor temperatures 14* -140*F (-10* - 60* celsius) .- Duable material resists kinking and collopsing. .- Reinforced spring inserts protect both ends from damage due to excess bending. .- Lays extremely flat and has a small bend radius to prrevent kinks. .- 1/4'' male NPT fittings. 1200 PSI burst pressure 300 PSI working pressure.