Resumen
Establishes the mounting and connecting dimensions for single fuel filters type 1 (sizes A1, B1 and C1), type 2 (sizes A1, B1 and C1), type 3 (sizes A1 and B1). Dimensions and requirements not specified are left to the discretion of the manufacturer. An example of the designation of a type 2 filter of size B1: Filter ISO 7774 - 2B1.