Features 【Premium Cast Iron】Air compressor valve plate is made of high quality cast iron material, heat resistant and corrosion resistant, suitable for various harsh environments, not easy to break, service life. 【100% Standard Size】These valve plates are standard size and the rectangular design is suitable for installation on a cylinder with a diameter of 51mm. The 10 replacement valve plates are suitable for air compressors from 0.75 to 1.5 KW. 【Easy Mount and Replace】These cylinder valve plates are easy to install and disassemble. Take the first valve plate and place the concave side on the suction side, put some butter on both sides of the plate in the groove, glue the other plate to the other plate and put it on the first plate. 【Essential Accessories】These air compressor valve plates are used for air compressor parts for suction and exhaust and are essential parts for maintenance. 10pcs per set, if you need to change the part of your air compressor, the plate can meet your quantity needs. 【51 Valve Plates】The kit contains 10 air press replacement valves for 0.75-1.5 kW air pressure air pump accessories. The air compressor valve plate size is 10 x 47 mm / 0.4 x 1.9 inches. Specification: Item Type: Air Compressor Valve Plate Model: 51 valve plate Purpose: Air compressor accessories, necessary accessories for maintenance Material: Cast iron Product Size: Approx. 10 x 47mm / 0.4 x 1.9in Explanation: 51 means that the diameter of the cylinder is approx. 51mm / 2in Package List: 10 x Air Compressor Valve Plate Note: When using it, please install it on a cylinder with a diameter of 51mm. Package List 10 x Air Compressor Valve Plate