Aladdin Caretaker Union O-Ring | O-179
Aladdin
SKU: O-179
Aladdin O-179 2" Pool Filter Bulkhead & Union O-Ring
The Aladdin O-179 Replacement O-Ring is a multi-use sealing gasket designed for select Pentair, Pac-Fab, Sta-Rite, Hayward, and Polaris Caretaker swimming pool equipment. Commonly used as a 2-inch filter bulkhead O-ring, union seal, and valve connection gasket, it helps prevent water leaks and maintain proper sealing in compatible pool plumbing and filtration systems.
Manufactured by Aladdin Equipment Company, the O-179 provides an aftermarket replacement for several original equipment seals, including Pentair 154492, Pentair 274495, Hayward SX220Z3, and Sta-Rite WC9-7.
Product Features
- Multi-Use Replacement O-Ring: Designed for compatible pool filters, unions, and valve assemblies.
- 2-Inch Union Applications: Used in select pool plumbing and Caretaker in-floor cleaning system unions.
- Filter Bulkhead Seal: Helps prevent leaks around compatible filter bulkhead connections.
- OEM Cross References: Replaces multiple original Pentair, Hayward, and Sta-Rite O-rings.
- Durable Construction: Designed for swimming pool and spa sealing applications.
- Individual Replacement: Allows replacement of a worn O-ring without purchasing an entire repair kit.
Product Specifications
- Manufacturer: Aladdin Equipment Company
- Manufacturer Part Number: O-179 / O-179-0
- Product Type: Multi-Use Filter Bulkhead / Union O-Ring
- Nominal Size: 2-Inch Union Applications
- Material: Elastomer
- Color: Black
- Application: Pool Filters, Unions, Valves, and In-Floor Cleaning Systems
- UPC: 601402263446
- Quantity: 1 O-Ring
Common OEM Cross References
- Pentair 154492
- Pentair 274495
- Hayward SX220Z3
- Sta-Rite WC9-7
- Polaris / Caretaker 1-13-3
- Omni 0-5960
Common Equipment Applications
- Pentair Triton II TR100C and TR140C Sand Filters
- Select Pentair and Pac-Fab Filter Bulkhead Assemblies
- Hayward Sand Filter Assemblies Using SX220Z3
- Sta-Rite Sand Filters Using WC9-7
- Polaris / Caretaker In-Floor Pool Cleaning System Unions
- Compatible 2-Inch Pool Plumbing Union Connections
Compatibility: Verify the original OEM part number and sealing location before ordering. Not all 2-inch unions use the same O-ring.
Signs Your O-Ring Needs Replacement
- Water leaking around filter bulkhead connections
- Leaks around threaded or union fittings
- Cracked, flattened, or hardened O-ring material
- Visible cuts, stretching, or deterioration
- Leaks developing after filter or plumbing maintenance
Installation and Maintenance
- Turn off the pool pump and disconnect electrical power.
- Relieve all pressure from the pool filter or plumbing system.
- Remove the existing O-ring and clean the sealing groove.
- Inspect the fitting and sealing surfaces for damage.
- Confirm that the Aladdin O-179 matches the original seal.
- Apply a thin coating of manufacturer-approved silicone lubricant if recommended.
- Install the replacement O-ring without twisting or pinching.
- Reassemble the equipment according to the manufacturer's instructions.
- Restart the system and inspect for leaks.
Related Pentair Filter Replacement Parts
Find additional replacement components for compatible Pentair Triton II filters using Aqua Pool Supply's illustrated parts diagrams.
- Pentair Triton II TR140 Filter Replacement Parts – Includes the Pentair 154492 bulkhead O-ring and related bulkhead hardware.
- Pentair Triton II TR60 Filter Replacement Parts – Browse filter bulkhead seals, gaskets, valve adapters, and other maintenance components.
Related O-Ring Lubricants
Proper lubrication can help protect replacement O-rings during installation. Browse Aladdin Magic Lube lubricants for compatible pool and spa sealing applications.
Additional Aladdin Replacement O-Rings
Explore our Aladdin replacement O-rings and seals for additional pool pump, filter, valve, and plumbing repair components.
Package Includes: One (1) Aladdin O-179 Replacement O-Ring.
Important: This listing includes the individual O-ring only. Filter bulkhead fittings, unions, valves, and other repair components are sold separately.
Compatibility Note: Aladdin O-179 is an aftermarket replacement manufactured by Aladdin Equipment Company. It is not manufactured by Pentair, Hayward, or Sta-Rite. Always verify your equipment model and OEM part number before purchasing.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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