Air Compressor Check Valve Metal Straight 1 Way Accessory Replacement for 21mm x 16mm x 10mm 327 Feature:1. Manufactured with exact size, the check valve allows a tight seal for the air compressor.2. This valve has excellent resistance to high pressure, corrosion and high temperature, ensuring stable operation.3. The edges and corners have been carefully polished, the processing line is uniform, there is no burr and there is no seam.4. Adopting cast iron material, the straight valve has uniform thickness, not easy to deform, and very durable.5. Threaded ports make installation easy. Perfectly fits the Z-0.036 exhaust pipe of the air compressor. Specification: Item Type: Air Compressor Check Valve Material: Cast IronFeature: Air Compressor Accessories. Application: For Z-0.036 Air Compressor Exhaust Pipe. Drive Mode: PneumaticValve Hole Specification: Approx. 21x16x10mm/0.8x0.6x0.4in Package List:1 x Air Compressor Check ValveUsage:Just install it on the air compressor of the right size.