Description Description The Haskel 568218-2 o-ring is a seal that is used in the air drive section of the Haskel 10 HP liquid pump series. The o-ring prevents leakage of air or gas from the drive piston and spool valve. The o-ring is made of durable material that can withstand high pressure and temperature. The o-ring is easy to install and replace, and it is compatible with various drive medias such as compressed air, nitrogen, CO2, natural gas, and sour gas. The Haskel 568218-2 o-ring is a vital component that ensures the optimal performance and safety of the Haskel liquid pump. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories