Karcher Tapered water pump adaptor for vacuum-resistant connection of suctions hoses to garden pumps and high-pressure pumps for domestic use. The adaptor is ideal for pumps with 1" connecting thread (33.3 mm) and 3/4" or 1" hoses. Includes union nut, hose clamp, washer and check valve. Check valve can be used in submersible pumps or submersible pressure pumps to prevent water flowing back into the pump. Otherwise, a washer is used instead of the check valve. Compactible MachinesSP 11.000 DirtSP 16.000 DualSP 5 DualSP 9.500 Dirt Features & BenefitsThe matching connection piece can be used depending on the size of the hoseIncludes non-return valveRotatable thread for mounting pump connector to the pump SpecificationsDiameter: 19-25mmThread Size: G1Colour: BlackDimensions: L.41 x W.65 x H.41mm