MAIN FUNTION: An indispensable part for air compressor maintenance and can be stored for a long time in a suitable working or storage environment.
CONNECTION FORM: Threaded connection is adopted, which is convenient for installation and tighter connection.
MATERIAL: The check valve is made of high‑strength brass. You can use it with confidence.
OUTER SCREW: Approx. 21mm/0.83in, Approx.19mm/0.75in. The corners and raised incisive points have been carefully polished and rounded without hurting your hands.
EASY TO USE: An excellent substitute for the old or damaged check valve of the Air‑Compressor to meet your needs.