We offer Quick Release Coupling. Wide variety of designs each tailored to a particular application. Based on valving, Hydraulic Quick Couplings generally are either Double Shut-Off or Straight-Thru. Double Shut-Off couplings contain shut-off valves in both halves (coupler and nipple) and are used extensively when loss of fluid is undesirable. Straight-Thru couplings have no valves in either half and are ideal for maximum flow applications.