The couplers, which is manufactured by Hytec, are of a standard poppet type, and are push-to-connect flat face couplers that feature 1/4 NPTF connections, and has a maximum operating pressure capacity of up to 5,000 psi. The standard couplers are suitable to use in lower cycle applications where little spillage after detachment is acceptable, while the push-to-connect couplers are suitable to use in high cycle applications.