Protect your Sta-Rite System 3 filter from water loss with the Aladdin O-485 Tank O-Ring, a precision-cut replacement gasket built for models S7M120, S7M400, S7S50, and S7D75. This seal sits between the upper and lower tank sections, creating a solid barrier that prevents drips and maintains full filtration pressure. Made from a hardy, chemical-tolerant compound, the O-485 holds its shape and elasticity through season after season of pool operation. Checking this gasket at every filter service and replacing it at the first sign of wear is one of the simplest ways to safeguard your equipment and avoid costly water waste.

Key Benefits

• Precise Sta-Rite System 3 Compatibility: Sized and shaped for models S7M120, S7M400, S7S50, and S7D75, delivering drop-in replacement without trimming or modifications.
• Reliable Watertight Barrier: Stops water from escaping between tank halves, allowing the filter to operate at its designed pressure and flow rate.
• Chemical and Pressure Tough: Formulated to resist degradation from sanitizers, algaecides, and the sustained internal pressures found in pool filtration systems.
• Boosts Equipment Longevity: A properly sealed tank reduces stress on pump motors and plumbing, contributing to longer overall system life.
• Smart Preventive Maintenance: Swapping in a fresh O-485 during routine filter cleanings is an affordable step that prevents larger, more expensive repairs down the line.

What's Included

• O-Ring

Compatibility

• Pentair Sta-Rite System 3 Modular Media SM Series Filter Models: S7M120, S7M400, S8M150, S8M500
• Pentair Sta-Rite System 3 SD Series DE Filter Models: S7D75, S8D110
• Pentair Sta-Rite System 3 SMD Series DE Filters
• Pentair Sta-Rite System 3 SS Series Sand Filter Models: S7S50

Specifications

• Brand: Aladdin
• Part Number: O-485

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