... ://www.richhose.com, Natural Rubber lining, Polyester jacket Jacket: 100% virgin high tenacity polyester Jacket, Double Jacket, Standard Wall thickness Lining: Natural Rubber (NR ... mm (PSI/Bar) (PSI/Bar) 1 1/2" 38 200/13, 250/17 600/39, 750/51 1 3/4" 45 ... 17 600/39, 750/51 2 1/2" 65 200/13, 250/17 600/39, 750/51 2 3/4" 70 ... 39, 750/51 3" 75 200/13, 250/17 600/39, 750/51 4" 102 200/13, 250/17 600/39, 750 ...