Aladdin O-179-0 2-Inch Bulkhead & Union O-Ring

Key Benefits + Bulkhead & Union Fitment

• Aladdin O-179-0 replacement O-ring for specific 2-inch bulkhead and union sealing applications.
• Used in Aladdin filter service kits for select Pac-Fab, Purex, Triton and Nautilus filter applications.
• Also used by Aladdin as a union O-ring in its Caretaker, EnvironPool and Dust & Vac 5-port valve O-ring kit.
• Cross-referenced to Pentair part number 154492 for applicable 2-inch bulkhead connections.
• Helps restore the seal when the original O-ring is worn, flattened, cracked or no longer sealing correctly.
• Confirm the equipment model and original part number before ordering.

Quick Product Summary

The Aladdin O-179-0 is a replacement pool-equipment O-ring used at specific 2-inch bulkhead and union connections. Aladdin identifies O-179 as a 2-inch bulkhead O-ring in multiple Pac-Fab, Purex and Triton filter service kits and also uses it as a union O-ring in its Caretaker 5-port valve service kit. If your equipment calls for Aladdin O-179/O-179-0 or the verified Pentair 154492 cross-reference, this is the replacement size to compare before purchase.

Best For

• Servicing select 2-inch filter bulkhead connections
• Replacing O-179 union seals used in specific Caretaker 5-port valve applications
• Matching equipment that calls for Aladdin O-179/O-179-0 or Pentair 154492

Why This Matters

• A worn bulkhead or union O-ring can allow water to seep from a serviceable connection.
• Using the specified replacement O-ring helps restore proper sealing after equipment service.
• Matching the original part number helps reduce wrong-part orders.
• Replacing a visibly damaged or flattened seal can be more effective than repeatedly tightening the connection.

Common Signs You Need This / Use This When

• The existing O-ring is cracked, flattened, stretched or missing.
• You are servicing a connection specifically calling for O-179, O-179-0 or Pentair 154492.
• Water is seeping from the applicable bulkhead or union connection and the sealing surfaces have been checked.
• The O-ring no longer seats correctly after disassembly and inspection.

Product Specifications

Compatibility / Fitment Notes

Aladdin lists O-179 as a 2-inch bulkhead O-ring in filter service kits for select Pac-Fab, Purex, Triton and Nautilus systems, including applications associated with Pentair 154492. Aladdin also includes O-179 union O-rings in its Caretaker, EnvironPool and Dust & Vac 5-port valve kit. Do not order by appearance alone; match the equipment model and original O-ring or cross-reference number before purchase.

Installation / Use Notes

Before servicing a filter, valve or other pressurized pool component, shut the system down and follow the equipment manufacturer's pressure-relief and service instructions. Remove the old O-ring, clean and inspect the groove and sealing surfaces, and install the replacement without twisting or pinching it. A compatible pool/spa O-ring lubricant may be used when appropriate; avoid petroleum-based products unless the equipment manufacturer specifically allows them.

Buy with Confidence

Benchmark Pool Supply helps customers identify replacement pool parts by model, part number and equipment application. If you are comparing O-179-0 against an existing bulkhead or union seal, verify the original equipment number before ordering so you can avoid a wrong-part purchase.