Premium water hose for coolant, circulation, heat exchanger and discharge uses. 2 ply reinforcement resists heat, ozone and toilet chemicals. Made to marine standards. Blue stripe. 5 year warranty. 280 degrees F. SAE J2006 R2. Lloyd's registry type approved. ID 1-1/4" OD 1-11/16" Length 12-1/2' Working Pressure 70#