Description Literature Description The Haskel 51174 cup seal is a high-quality component for pneumatic and hydraulic systems. It is made of durable rubber material that can withstand high pressure and temperature. The cup seal has a smooth surface that prevents leakage and ensures optimal performance. The Haskel 51174 cup seal is compatible with various Haskel pumps and valves, and can be easily installed and replaced. The cup seal is designed to meet the highest standards of reliability and efficiency. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories