The UF Series contains standard manual couplings that are available in bore sizes ranging from 6-32 millimeters. These non-interchangeable Walther couplings are offered with both square and triangular connection point shapes, and each coupling must be paired with the same shape. They are best suited for low pressure applications with maximum working pressures up to 580 psi. View our full catalog of Non-Interchangeable couplings below: