Features Designed with metal cladding and filter paper for easy installation of air compressor. Used to filter particles in the air to reduce the wear of cylinders and pistons. Mall in size and light in weight, convenient to carry and use at any time, very convenient and practical. Have humanized design, simple operation, easy to install, convenient to use and operate. With stable and excellent performance can be used to replace old or damaged piston air compressor filter. Specification:Item Type: Piston Air Compressor Filter Material: Aluminum and resin bonded mixed fiber Applicable Compressor Type: Piston compressor Product Length: Approx. 106mm / 4.2in Product Height: Approx. 51mm / 2in Aperture: Approx. 84mm / 3.3in Package List:5 x Piston Air Compressor Filter Package List 5 x Piston Air Compressor Filter