RP 303D - Silicone Coolant Hoses And Hose Assemblies: Construction

This specification covers one basic class and two grades of hose construction as follows:

Class  I - Full tube I.D. silicone rubber hose for clamping to formed and beaded male tube ends. See MATERIAL SPECIFICATION, CLASS I, GRADE I, STANDARD WALL HOSE DIMENSIONS  and CLASS I, GRADE II, VALUE WALL HOSE DIMENSIONS 

Grade 1: Standard wall

Grade 2: Value wall