Pentair 350013Z O-Ring - -436, 5.85in x 0.275in, Buna 60

What This Part Is Used For
The Pentair 350013Z O-Ring - -436, 5.85in x 0.275in, Buna 60 is used to seal compatible Pentair pool equipment housings and lids. It fits applications requiring a -436 size O-ring with 5.85in diameter and 0.275in cross section.

Why This Part Matters
A worn or flattened O-ring can cause air leaks, water loss, and unstable filter pressure. Replacing it restores proper sealing and system integrity. Buna 60 material supports reliable performance in pool environments.

Key Features and Specifications

• Manufacturer part number: 350013Z
• O-ring size: -436
• Dimensions: 5.85in x 0.275in
• Material: Buna 60
• OEM Pentair replacement seal

Installation and Fitment Guidance
Remove the old seal and clean the groove thoroughly before installation. Lightly lubricate with a pool-compatible lubricant. Confirm by manufacturer part number before ordering.

About the Pentair Brand
Pentair manufactures pumps, filters, and automation systems for residential and commercial pools. Their OEM seals are engineered for precise fit and durability. Pentair replacement components support proper maintenance and long-term reliability. Service professionals rely on Pentair for consistent equipment performance.

Common Service Context
Commonly replaced during filter cleanings or tank resealing. Used when suction leaks or drips are observed around large lids.