SMALL INTEGRATION: You will receive 1* Air Regulator Regulator, the black part is for the air pressure regulator, the blue part is for the water filter, and the last part is for the stainless steel adapter Separation of impurities: The transparent filter bowl allows visual inspection of standing water, and can filter solid residues in the air, such as pipe scale, rust, airline condensation, through the spring valve at the bottom Keeps Paint Clean: Air Compressor Water Separator Kit is installed in the paint gun and air compressor to prevent water, oil and impurities from contaminating your paint job with a 1/4 air intake Safe and practical: with a pressure regulator, the pressure of the working tool can be seen at a glance; the threaded part can be pasted with sealing tape to prevent air leakage; the clean air of the pneumatic tool can prolong the service life of the tool to a certain extent Wide range of applications: Air conditioning regulators are suitable for most spraying tools and aircraft, such as paint guns, air pressure cleaners, aviation dryers, etc., and can be used as a compact filter for air spray guns