Item Type: Oil?Free Muffler_x000D_ Type: Fragile accessories_x000D_ Top Diameter: Approx. 55mm / 2.2in_x000D_ Total Height: Approx. 72mm / 2.8in_x000D_ Thread Width: Approx. 13mm / 0.5in_x000D_ Filter Element Size(Outer Diameter x Inner Diameter x Height): Approx. 58 x 50 x 24mm / 2.3 x 2 x 0.9in_x000D_ Applicable Compressor Type: Silent oil-free air compressor 1The muffler is mainly installed at the air inlet of the air compressor, which can effectively block dust and moisture in the air. 2The oil?free machine muffler replacement can reduce the noise of the compressor in operation and make it run normally. 3The muffler is a G1/4 opening thread specification, standard size, and it is airtight when installed on the compressor. 4The plastic silencer is small in size, light in weight, easy to install and disassemble, and has a long service life. 5The oil-free muffler has a good filtering effect and is suitable for silent oil-free air compressors.1 x Oil?Free Muffler