Ensure optimal performance and efficiency for your marine or industrial air compressor with the TANABE H-74 Second-Stage Piston Ring. Specifically engineered for the TANABE H-74 air compressor model, this premium replacement part (Part Number 43) is designed to maintain precise compression and prevent air leakage in the second stage of your system. Each box contains a complete set of 6 meticulously crafted piston rings, securely packaged in a factory-sealed plastic bag to prevent environmental damage and corrosion during transit and storage. Routine maintenance and replacement of worn piston rings with these high-quality spare parts will significantly extend the operational lifespan of your equipment and guarantee reliable performance under demanding working conditions.