O-523KIT | Aladdin Hayward PSV Valve O-Ring Kit | PSXVZ2A

The Aladdin O-523KIT is a complete O-ring replacement kit designed for the Hayward PSV Series diverter and check valves (OEM part number PSXVZ2A). It includes a gasket and all necessary O-rings required to reseal the valve key and cover — providing a tight, leak-proof seal and helping restore reliable flow control. This kit is ideal for maintenance or repair of Hayward PSV valves to prevent leaks, ensure proper valve function, and extend the lifespan of the valve body. The precision-fit rings are manufactured for durability and chemical resistance in chlorinated pool environments, making the O-523KIT a cost-effective, turnkey solution for pool and spa plumbing upkeep.

Highlights

• Complete Seal Kit: Includes gasket G-391/2 and O-rings (O-158 and O-440) needed to reseal the key and cover of PSV valves — no extra parts required.

• OEM Compatibility: Engineered specifically for Hayward PSV Series diverter and check valves (PSXVZ2A), ensuring proper fit and performance.

• Prevents Leaks & Improves Flow Control: Replaces worn seals to restore tight closure and proper valve operation, reducing the risk of leaks or bypass flow.

• Durable Replacement Parts: O-rings are made from pool-grade materials that resist chemical exposure and degrade slowly — ideal for long-term maintenance.

• Cost-Effective Maintenance Solution: Offers an inexpensive way to service or refurbish a PSV valve without needing full valve replacement, saving time and money.

Includes

•  (1) Gasket G-391
• (2) O-Rings O-158
• (1) O-Ring O-440

Additional Info

The Aladdin O-523KIT provides all essential seals for Hayward PSV Series diverter and check valves (PSXVZ2A), including the G-391/2 gasket and key/cover O-rings. This section helps Discount Pool Mart walk-in customers confirm whether the kit fits their valve, understand where each O-ring goes, and identify common leak sources before picking it up in store. These FAQs support faster service, better flow control, and leak-free operation.

Compatibility and Fitment

Walk-in customers often bring their old valve or photos to confirm whether the O-523KIT is the correct match.

How do I confirm the O-523KIT fits my Hayward PSV valve?

Look for PSV markings or the PSXVZ2A reference on the valve body. If present, the O-523KIT is the correct rebuild set. Bringing photos to Discount Pool Mart helps staff verify compatibility instantly.

Will this kit work for both diverter and check-valve versions of the PSV series?

Yes, the sealing layout is shared across both styles. The included gasket and O-rings match the standard PSV key and cover assembly.

Can this kit fix slow leaks or seepage around the valve lid?

Yes, worn cover O-rings and gaskets are the most common cause of lid seepage. Replacing them with the O-523KIT components usually resolves the issue.

Installation and Troubleshooting

Discount Pool Mart customers frequently ask how to position the seals and what symptoms indicate deterioration.

Where do the O-158 and O-440 O-rings go?

The O-158 seals the rotating key, while O-440 installs beneath the cover. The G-391/2 gasket completes the lid sealing surface.

What should I clean before installing new O-rings?

Remove debris, scale, and old lubricant from the key channel and lid groove. Clean surfaces help the O-rings seat evenly.

How do I confirm the valve is sealing correctly after installation?

You should feel smooth key rotation and observe no moisture around the cover. Flow should redirect cleanly when turning the diverter handle.

In-Store Pickup and Local Guidance

This section prepares customers for a smoother visit to Discount Pool Mart.

Is the O-523KIT usually available for same-day pickup?

Yes, it is commonly stocked due to frequent PSV maintenance. Calling ahead ensures immediate availability.

Should I bring the old gasket or valve key for comparison?

Yes, walk-in customers often bring these parts so staff can verify sizing and confirm no other components need replacement.

Do customers often purchase additional items with this kit?

Many pick up silicone lubricant, replacement lids, or new diverter handles during PSV service.