Efficient Moisture And Contaminant Filtration: This inline oilwater trap filter effectively separates moisture and captures solid particles such as pipe scale and rust, guaranteeing a clean, dry air supply for your airbrush and pneumatic tools and helping prevent paint contamination and equipment damage. Standard 1/4 Inch Thread Compatibility: Featuring 1/4 inch threads, this air regulator, gauge, and filter combo offers broad compatibility with most airbrushes, spray guns, and pneumatic tools. Transparent Bowl For Visual Monitoring: The clear filter bowl allows easy inspection of accumulated moisture and debris, enabling quick maintenance when needed and helping extend the service life of your airbrushing and spraying equipment. Dependable Copper Construction: Built from durable copper, this air filter and regulator set provides reliable performance and consistent air pressure control. Use scenarios: Detail airbrushing on models, miniatures, or cosmetics where dry, contaminant air is essential to avoid paint defects. Fine spray painting of automotive parts, furniture, or crafts, where stable pressure and clean air contribute to smooth, even finishes. General workshop use to power pneumatic tools and spray guns with clean air, reducing moisturerelated issues and equipment wear.