High quality materials: transparent container shell made of polymer material with high strength and internal heat resistance, not easy to age, good sealing performance, waterproof, no air leakage. Precision instruments can be disassembled and combined. Lightweight, small size, easy installation and maintenance.Filter regulator: releases gas from the air inlet and stabilizes pressure by balancing force. Turn clockwise to increase pressure and counterclockwise to reduce pressure. Effectively filters small particles and keeps the air clean.Water-oil separator: effectively removes contaminants and debris from compressed air, extending service life and improving performance. Must be connected to an air compressor to address issues of oil and water in piping.Air filter regulator: reduces and regulates air pressure to a required value after filtration. Utilizes throttling and balanced forces with pressure elements and regulators for consistent performance.Wide range of uses: suitable for various applications such as painting, electronic powder blowing, industrial automation equipment, medical devices, air compressors, pneumatic tools, and gas connection installations. Effectively filters air humidity.Quantity delivered: 1 piece