Feature:1. Valve plates are used for air compressor parts for suction and exhaust, and are essential parts for maintenance.2. The kit contains 10 replacement valve plates for air compressors, suitable for 0.75-1.5KW air compressor air pump accessories.3. These valve plates are of standard size, and the rectangular design is suitable for installation on a cylinder with a diameter of 51mm.4. Made of high-quality cast iron material, heat-resistant and corrosion-resistant, suitable for various harsh environments.5. Easy to install and disassemble, it is an essential accessory for air compressor maintenance.Specification:Item Type: Air Compressor Valve PlateModel: 51 valve platePurpose: Air compressor accessories, necessary accessories for maintenanceMaterial: Cast ironProduct Size: Approx. 10 x 47mm / 0.4 x 1.9inExplanation: 51 means that the diameter of the cylinder is approx. 51mm / 2in.Package List:10 x Air Compressor Valve PlateNote:When using it, please install it on a cylinder with a diameter of 51mm.