Features The muffler has a good filtering effect and is suitable for silent oil-free air compressors. The G1/2 standard threaded opening can be tightly connected with the air compressor, and the air tightness is good. Made of high-quality plastic materials, it has the properties of wear resistance and corrosion resistance. The oil‑free muffler can help reduce the noise of the compressor at work, so that it can operate normally. Mainly installed at the air inlet of the air compressor, it can effectively block the dust and moisture in the air. Specification: Item Type: Air Compressor Silencer Filter Type: Fragile accessories Top Diameter: Approx. 55mm / 2.2in Total Height: Approx. 72mm / 2.8in Thread Width: Approx. 20mm / 0.8in Filter Element Size(Outer Diameter x Inner Diameter x Height): Approx. 58 x 50 x 24mm / 2.3 x 2 x 0.9in Applicable Compressor Type: Silent oil-free air compressor Package List:1 x Air Compressor Silencer Filter Package List 1 x Air Compressor Silencer Filter