This is an o-ring designed for the Swimquip XL-VI self-priming pumps. This o-ring is identical to O-74, Ampro 60057, Lomart/Prest Metal 53058, Pentair/PacFab 354502,and Sta-Rite/Swimquip 355051338.
This o-ring has been manufactured in accordance with OEM specifications and are designed to meet or exceed specifications.