... to Yellowing, Aging, Abrasion etc. 100% of TPU 1,Air hose. 2,Different materials for your choice: rubber, PVC, PE, PU ... to your requirementsThese Recoil Hoses stay neatly coiled when not in use, yet stretch to full length when needed. Great for ... protect ends from kinking. 1/4" NPT.Description:a: Available in blue, red, and yellow.b: Working pressure: more than 300PSIc ...