This is a flexible coupling element for large Edwards E1/E2M series pumps. It cross-references to Edwards part number CUP0041. This is the rubber or plastic insert that connects the motor to the pump. It absorbs shock and handles minor shaft misalignment. Fits E1M175, E1M275, E2M175, and E2M275 models.
Our Piston Ring (Part# 26501020) is a direct replacement for the original Edwards part. It restores that tight seal. Your pump will pull a stronger vacuum and run more efficiently.
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