1. Quality ORings: Made from durable synthetic rubber, these pool sealing rings are built to withstand daily wear and tear in your pool system. The robust construction ensures longterm performance and reliability, helping maintain your pool's efficiency without frequent replacements. 2. Compatible with Sand Filter Pumps: These Orings seamlessly work with numerous sand filter pump motors, including models 26323CA, 26331CA, 26337EH, 26351EH, 26361CA, 26371EH, 28643EG, 28651EG, 28946EH, and more. Keep your pool equipment running at peak performance with these precisionfit replacement seals. 3. Leak Protection: The specially designed sealing rings enhance contact with the piston valve, creating a tight seal that effectively prevents leaks. This protection helps avoid potential damage to your expensive pool equipment while maintaining proper water flow in your system. 4. Easy Installation: No special tools or technical skills are required to these Orings. Simply remove the old seals and install the ones to quickly restore your pool system to proper working . This straightforward maintenance task helps keep your pool running smoothly all season long.