This rigid mount Coupler features a patented design that permits connection while both the coupler & male tip are under pressure. These couplers can be mounted directly to a valve or rigid tubing, eliminating the need for hose assemblies and break-away clamps. It is recommended to purchase in quantities of two (pressure & return).The K3A111-82011 Hydraulic Breakaway Coupler, Female fits equipment brands such as: Kubota