describe Reliable SealingThe compressed air filter has 2 pneumatic ports and 1 1/4" port, the NW 7.2 is equipped with a sealing ring, so no air escapes. Easy to useThe Y-type compressed air distributor can be simply connected to the compressor and expanded with additional compressed air tools. Compressed air connectors ensure efficient work without annoying switching. European Standard ProfilesCompressed air Y-shaped parts are suitable for almost all available compressed air tools in Europe. The compressed air tee is made of rust-proof brass Sturdy and easy to useThe compressed air switch is assembled. The material of the compressed air distributor is nickel plated brass and the compressed air connection is brass. 2-way compressed air distributor is corrosion resistant and durable