We proudly stock Genuine Pentair OEM parts, ensuring you get the authentic, manufacturer-approved components for your Pentair pool equipment. Trust in the quality and performance of these original parts. We also provide high-quality generic replacements, offering a cost-effective alternative without compromising on standards. At PoolZoom, we're committed to being your one-stop-shop, offering a diverse range of options to meet the unique preferences and requirements of every pool equipment. See the Generic replacement for Pentair 51003100 Cap O-Ring.