1,3.5 years guaranteed 2,Model:F1/2*F3/4(150--2000mm)Dia12.5-40mm 3,S.201 EPDM inner hose,brass nut ... SS braided hose/ ... brass 3.Nut size: Brass,and nickle plated4.Inner hose:EPDM ,PVC,normal rubber tube 5.Salt spray test: ... the outer packing, depend on the length of the hose.WE PROMISE TO GIVE 3.5 YEARS GUARANTEED FOR ANY ...