1、Good filtering effect, suitable for small direct‑coupled air compressors with oil 2、The product is made of high quality with sponge filter element, durable long service life, 3、The silencer has standard production, easy to install and disassemble, the thread width is about 20mm 4、The male thread is G1/2in with good workmanship, simple and convenient to replace the old one 5、Professional design and reasonable structure, can be used for filtration, great accessory for air compressor Item Type: Air Compressor Silencer Muffler Applicable Compressor Type: Small direct-coupled air compressor with oil Male Thread Specification: G1/2 Maximum Outer Diameter: Approx. 80mm / 3.1in Thread Width: Approx. 20mm / 0.8in Accessory Type: Vulnerable accessories Accessories Use: Filtration Filter Element: Sponge 1 x Air Compressor Silencer