An efficient and safe way to join hydraulic hoses or lines is with a Flat Face Quick Coupler, sometimes referred to as a Flat Face Coupler. It is frequently utilized in hydraulic systems for machinery used in industrial, agricultural, and construction settings as well as other applications requiring hydraulic power transfer.

The mating surface design of the coupling is referred to as its "flat face". Flat face couplers are distinguished from conventional hydraulic couplings by their direct connection without any protruding pieces, thanks to their flat mating surfaces and threaded or valved connections. Because of their design, flat face couplers reduce air inclusion and fluid loss during connection and disconnections, which makes them perfect for situations where efficiency and cleanliness are crucial.