1/4 inch compressed air maintenance unit with regulator, filter and water separator, plus a pressure gauge, designed for use on compressors. This unit helps protect air tools from dirt, water and chemical impurities while delivering clean, dry air and stable pressure. Key benefits - Protects tools and equipment: removes dirt particles, water and oil, extending tool life. - Precise pressure control: adjustable regulator with pressure gauge allows set and maintain the desired output. - Clean, dry air: integrated water separator and oil/water separation reduce moisture and oil carryover. - Easy to install and maintain: compact, lightweight design with simple upkeep. - Constant pressure operation: pressure holding capability helps minimize fluctuations and effectively remove condensate. How to adjust - Pull the black button at the top of the regulator and turn to set the desired pressure. Specifications and compatibility - Connection: 1/4 inch air fittings - Pressure range: 0.5 to 8.5 kg/cm2 - Maximum adjustable pressure: 9.5 kg/cm2 - Operating temperature: 5 to 60 C - Function: pneumatic maintenance unit with filter and water separator, including a pressure gauge Applications and use scenarios - Automotive and shop use: feeding spray guns, air grinders, impact wists with clean, dry air and stable pressure. - General workshop line maintenance: ideal for painting booths, dust removal, and running multiple pneumatic tools from a single compressor. - Industrial setups: suitable for CNC shops or maintenance bays where consistent pressure and air cleanliness are essential.