The Aladdin O-83 is a direct aftermarket replacement for Pentair part number 154492 , engineered as the 2-inch bulkhead standpipe O-ring for Pentair FNS Plus and Titan/Titan CM D.E. filter series. Seated at the filter's internal bulkhead standpipe connection, this O-ring creates the watertight seal that prevents water and D.E. powder from bypassing the filter grids and leaking internally — a degraded or flattened bulkhead O-ring is one of the most common causes of D.E. powder returning to the pool after backwashing. Measuring approximately 2-3/16 inches inside diameter, slightly under 2-1/2 inches outside diameter, and just over 3/32 inches in thickness, the O-83 matches OEM dimensions precisely for a leak-free fit. Also cross-references Jandy/Zodiac part number R0792000 for additional compatibility.
Highlights
- Direct Replacement for Pentair 154492 : Engineered to match the exact dimensions of the Pentair 154492 bulkhead standpipe O-ring — approximately 2-3/16" inside diameter, just under 2-1/2" outside diameter, and slightly over 3/32" thick — ensuring a precise, properly seated fit in FNS Plus and Titan/Titan CM D.E. filter models.
- Stops D.E. Powder from Returning to the Pool: A worn or degraded bulkhead O-ring allows water to bypass the filter grid assembly, carrying D.E. powder back into the pool after backwashing — replacing the O-83 restores a proper internal seal and eliminates this common filtration problem.
- Cross-References Jandy/Zodiac R0792000: Also listed as a confirmed replacement for Jandy/Zodiac part number R0792000, extending compatibility to select Jandy CL and DEV Series cartridge and D.E. filter models including CL460, CL580, and DEV48.
- Cost-Effective Aftermarket Seal Replacement: The Aladdin O-83 delivers OEM-equivalent sealing performance at a significantly lower cost than the factory Pentair 154492 part — making it an efficient, budget-conscious solution for routine filter seal maintenance and leak repair.
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Pool-Grade EPDM Rubber Construction: Molded from pool-grade EPDM rubber that resists continuous pool chemical exposure, water pressure, and temperature variation — maintaining its elasticity and sealing performance throughout extended pool season use without hardening or compressing out of shape.
Compatibility
- Pentair Clean and Clear Plus Filter
- Pentair Quad DE Filters
- Pentair FNS Plus Filters
Diagram

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