Description Description The Haskel 568906-9 o-ring is a high-quality seal that is compatible with the Haskel 4B series air driven liquid pumps. The o-ring is made of durable material that can withstand high pressure and temperature conditions. The o-ring is easy to install and replace, and it helps to prevent leakage and improve performance of the pump. The o-ring has a part number of 568906-9 and it comes in a factory sealed package. The o-ring is suitable for various applications that require reliable and efficient liquid pumping. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories