Precise Pressure Regulator: The precise plug-in air pressure regulator effectively and precisely filters moisture and fine particles to achieve clean and dry air, preventing damage to pneumatic tools and equipment. Easy to use: The oil-water separator can precisely control and provide clean and dry air. Using the adjustable pressure regulator, pull up the black knob on the top and turn the regulator to adjust the required pressure. High quality materials: Copper filter material, fine filtration , longer life. Capacity shell made of polymer material, good sealing, impervious to water and air leakage. Always maintain a constant outlet pressure, regardless of the size of the inlet pressure and flow fluctuations. Multi-purpose: Air compressor, pneumatic tools, connection installation of gas, effective moisture filtration. It can be used in construction machinery, teaching test, equipment, machinery manufacturing, etc.Product Name: Combo Piggyback Air Filter Pressure Regulator Size of air inlet:1/4 NPT Flow rate:500L/minutes Maximum working pressure:10.3BAR (145PSI) Operating Temperature Range:40-140F(5-60) Drain Type:Manual Body Material:Alloy aluminium Features: to reduce or maintain air pressure; filter moisture and fine particles from the air.Fiber filter element The filter element is made of fibre. Strong filtration capacity, can effectively filter air particles and water. Transparent filter cup The diameter of a transparent cup can be used to observe the volume of water and oil in the cup. The capacity of the cup should not exceed80%. Precision pressure gauge The pressure gauge with purple copper core is more accurate for pressure induction, and the metal shell is impact and corrosion resistant. The dial scale has two units of measurement (psi/mpa ). Filter:It can effectively filter impurities, dust, moisture and particles in the air. Regulatory function:With pressures ranging from 0 to 145 PSI, you can pull the knob on the filter and rotate it to reduce the pressure. Instructions: Before installing the filter, be sure to clean the threaded holes and filter accessories to ensure that no impurities enter the air system. Pay attention to the direction of the airflow and follow the arrow on the filter. If the airflow direction is incorrect, the filter will not work properly. About draining: When there is no air pressure, the water in the filter cup will be automatically evacuated; when there is air pressure, please manually push the drain needle located under the filter cup upwards and the water will be drained. Precautions: Before installing the fittings, please wind the Teflon tape around the fittings to prevent air leaks. There may be leaks when first installed (the internal pressure is different from the external pressure at the beginning, and the excess pressure will be discharged, please wait patiently, after releasing excess air, no leakage will occur).