A FFX-06-08 | 3/8" Hose x 1/2" ORFS (O-Ring Face Seal) swivel is a type of hydraulic fitting that consists of two parts: a hose fitting with a 3/8" inside diameter and an ORFS swivel fitting with a 1/2" size. The ORFS swivel fitting has a flat face with an O-ring seal that mates with a corresponding flat face on the male fitting, providing a reliable seal in high-pressure hydraulic applications.