A FFX-04-04 | 1/4" Hose x 1/4" ORFS (O-Ring Face Seal) swivel is a type of hydraulic fitting that consists of two parts: a hose fitting with a 1/4" inside diameter and an ORFS swivel fitting with a 1/4" 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.