Construction provides max fitting retention at high temperatures and pressure Designed to handle most specialized air and water applications Red cover is non-marking, abrasion, heat and ozone resistant Hardness Shore A, Durometer 80+/-3 Brittle at -50degrees Fahrenheit, 175 degrees max operating temperature 300 psi I.D. x O.D. Ins.=1/4 x 1/2 Lgth Ft=200