Aladdin O-484 Sta-Rite System:2 Filter Tank O-Ring | 27001-0061S

Key Benefits + Sta-Rite System:2 Fitment

• Aladdin O-484 replacement filter tank O-ring for documented Sta-Rite / Pentair System:2 filter applications.
• Cross-referenced to OEM part numbers 27001-0061 and 27001-0061S.
• Used for System:2 Modular Media PLM and Modular D.E. PLD filter tank sealing applications.
• Documented for post-March-1997 applications where 27001-0061/27001-0061S is specified.
• Aladdin distinguishes O-484 from O-488, which is the earlier pre-March-1997 tank O-ring.
• Confirm the filter model, manufacture period, and original part number before ordering.

Quick Product Summary

The Aladdin O-484 is a replacement filter tank O-ring for select Sta-Rite / Pentair System:2 modular media and modular D.E. filters. Aladdin cross-references O-484 to 27001-0061 and identifies it for post-March-1997 applications, while current Pentair parts sheets list 27001-0061S as the tank cord-ring used on System:2 PLM and PLD filters. Documented model families include PLM100, PLM125, PLM150, PLM175, PLM200, PLM300, PLD50, and PLD70, subject to model and production-date verification. Do not substitute the earlier O-488 / 27001-0060 seal without confirming the filter's production period and parts diagram.

Best For

• System:2 PLM modular media filter tank service
• System:2 PLD modular D.E. filter tank service
• Replacing 27001-0061 or 27001-0061S where specifically documented
• Post-March-1997 filter applications calling for O-484

Why This Matters

• The tank O-ring seals the joint between the upper and lower filter tank sections.
• A worn, flattened, stretched, or damaged seal can allow water to leak from the tank joint.
• Correctly matching the production-era tank ring helps avoid installing the earlier O-488 seal in an O-484 application.
• Using the documented part number reduces wrong-part orders across visually similar System:2 filter tanks.

Common Signs You Need This / Use This When

• The existing tank O-ring is cracked, flattened, stretched, hardened, or missing.
• Water is leaking from the filter tank joint after the sealing surfaces have been inspected.
• Your filter parts diagram specifies 27001-0061 or 27001-0061S.
• You are servicing a documented post-March-1997 System:2 PLM or PLD filter.
• The current tank ring no longer seats evenly in the sealing groove.

Product Specifications

Compatibility / Fitment Notes

Aladdin's cross-reference identifies O-484 with 27001-0061 for System:2 tank sealing and distinguishes it from O-488 / 27001-0060 used on earlier pre-March-1997 applications. Pentair parts sheets list 27001-0061S as the cord-ring or tank O-ring on System:2 PLM modular media and PLD modular D.E. filters. Current PLM parts information includes PLM100, PLM125, PLM150, PLM175, PLM200, and PLM300, while PLD parts information includes PLD50 and PLD70. Always match the filter model and original service part number before ordering.

Installation / Use Notes

Before opening a pool filter, shut the circulation system down and follow the filter manufacturer's pressure-relief and service instructions. Remove the old tank O-ring, clean and inspect the sealing groove and mating surfaces, and install O-484 without twisting or pinching it. Use only an O-ring lubricant approved for pool and spa equipment when appropriate. Reassemble and restart the filter according to the manufacturer's instructions, and never open a filter while it is pressurized.

Buy with Confidence

Benchmark Pool Supply helps customers identify replacement filter parts by manufacturer, model, production era, and OEM part number. For O-484, compare your filter's parts diagram against 27001-0061 or 27001-0061S and confirm that the earlier O-488 / 27001-0060 ring is not the required part before ordering.