Introducing the Aladdin Replacement Tank O-Ring, designed for Pentair 4000 series filters This replacement offers unmatched durability, engineered with top-tier materials to withstand pressure and harsh conditions. Simply apply lubrication during installation for a secure fit and enhanced filtration system performance. Exact with OEM specifications, requires just one o-ring for a seamless replacement, providing a reliable and enduring solution. Highlights Durable Construction:Crafted with high-quality materials, our replacement o-ring ensures lasting resilience. It withstands diverse conditions, preventing tears or leaks for long-lasting performance. Easy Installation:Replacing your tank o-ring is simple with our product. It requires only one to be replaced, and using lubrication during reinstallation ensures a tight fit, minimizing leaks. Equal to OEM Standards:This tank o-ring matches OEM specifications, guaranteeing superior performance. Compatibility Pentair SMBW 4000 Series DE Filters:4036, 4048, 4060 Diagram