Key benefits Consistent spray performance: regulates incoming air pressure and filters contaminants so your spray gun delivers a steady, even flow. Protects finish and saves rework: removes water and particles from the air supply to prevent paint defects, runs, and clogging. Quick maintenance: clear bowl and spring‑loaded drain let you inspect and remove collected water without disassembling the unit. What this unit does Air inlet pressure regulator with integrated compact filter designed for use with spray guns. Standard 1/4" thread for compatibility with most spray guns and common air fittings. Transparent filter bowl for visual inspection and a spring‑loaded valve for fast, tool‑free draining of accumulated water. Why you need it Eliminates moisture and debris that cause poor finish quality and wasted material. Keeps spray equipment operating at the correct pressure for predictable atomization and consistent results. Saves time on maintenance and reduces downtime thanks to easy inspection and quick draining. Key features Function: pressure regulation plus inline filtration for air-powered spray applications. Compatibility: standard 1/4" thread, fits most spray guns and air lines. Size & form: compact design installs directly in the spray line without adding bulk. Performance: clear bowl for immediate visual status checks; spring-loaded drain valve for fast water removal to maintain filter efficiency. Typical applications and scenarios Automotive refinishing: use upstream of a spray gun to prevent water spots and ensure even clearcoat and basecoat application. Woodworking and furniture finishing: protect stains, lacquers, and varnishes from moisture contamination for smooth, consistent surfaces. Industrial and construction spraying: install at the tool inlet to reduce defects when spraying primers, paints, or protective coatings on metal, structural components, or shipboard sections. Practical notes Install in the air line close to the spray gun for best protection. Inspect the clear bowl regularly; open the spring‑loaded valve to drain water as needed to maintain flow and filter performance. Intended for use with compressed air supply to handheld spray equipment; check hose and fitting compatibility with the standard 1/4" thread. Reliable, simple protection for better finishes and less rework — a compact regulator/filter that fits most spray guns and makes maintenance fast and visible.