Parker cartridges are used to prevent the tightening of compression nuts resulting in cross threading or over / under torquing of the fittings in applications like airlines, packaging, labelling and robotics. These units feature compact design that automatically self centres in the cavity and eliminates threaded connection to prevent the risk of spiral leakage in mated fittings. They come with push-to-connect type configuration to provide quick installation and reduced assembly time and are compatible with both plastic and metal cavities, thus reducing the inventory costs. These industrial quick connect cartridges are compliant to SAE and NSF standards and are available in 1/4, 3/8 and 1/2 inch O.D. (outer diameters).