[Easy to Install] Extremely easy to install the kit, just take the cylinder system apart, the new sleeve has a rolled bottom so you need to remove the piston from the shaft and slide it up over piston, put the ring on piston before inserting into sleeve be easier. [Fit Your Needs] Fits model number 165080, this ring kit fits for many models compressor, please check your model with the compatibility list description below. [Rebuild Compressor as New] When your compressor runs so loud or does not build pressure, please use this compressor ring kit to fix it, our high quality ring kit fix the problem and make the compressor working like a new one. [Built to Last] the cylinder sleeve is hardened to tough and high pressure withstand, and it's rustproof and resistance. The piston ring and sleeve O-rings are made of specific rubber, they seal the cylinder and provide a great airtightness to minimum loss of gases. They are very that could for many years., Weight: 0.34392112872 pounds, Manufacturer: Hipzeepo