The Pentair Union Diamond Seal 178746Z is an OEM replacement part made for Clean & Clear RP cartridge filters. Serving as a crucial sealing component, this diamond-shaped gasket ensures a reliable connection within the filter housing to prevent leaks. Constructed from high-quality, chemical-resistant materials, it withstands demanding pool and spa conditions while maintaining consistent water flow. Installing this genuine Pentair part helps preserve the filtration systemÕs efficiency, extend equipment life, and support clear, healthy water.

• Tight, Reliable Connection: The Pentair 178746Z diamond seal provides a secure and precise fit that prevents leaks at the filter union. By ensuring a stable connection, it helps maintain system pressure and smooth water circulation.

• Prevents Leaks: Specifically engineered for Clean & Clear RP filters, this OEM seal eliminates gaps that could lead to water loss. Reliable sealing protects against performance issues and supports long-term system efficiency.

• High-Quality Materials: Made from durable elastomer designed to resist pool chemicals and wear, the 178746Z maintains flexibility and effectiveness. Its rugged construction allows it to provide dependable service over many maintenance cycles.

• Essential Maintenance Component: As a genuine Pentair-manufactured replacement, this part preserves original system performance. Replacing worn or damaged seals is critical to keeping the filtration system functioning at peak condition.

• Optimal Filtration Performance: By preventing leaks and supporting strong internal pressure, the seal helps maximize water flow through the filter. Consistent filtration improves clarity and contributes to overall water quality.

• (1)ÊPentair 178746ZÊ

• Pentair Clean and Clear RP Filters

The OEM Pentair 178746Z Union Diamond Seal is designed for Clean & Clear RP filters. This section covers installation, leak prevention, and in-store purchasing tips for quick replacements.

Installing the Pentair 178746Z Diamond Seal

This seal fits into the filter union to create a watertight connection, ensuring reliable filtration.

How do I install the Pentair 178746Z seal into my Clean & Clear RP filter?

Does the 178746Z require lubrication before installation?

Can I replace the 178746Z without removing the entire filter union?

Where can I buy the Pentair 178746Z diamond seal in-store today?

Troubleshooting Union Leaks and Seal Problems

Leaks can occur if the seal is missing, cracked, or seated incorrectly. Replacing it restores system performance.

Why is my RP filter leaking after adding a new 178746Z seal?

Could the O-ring or union nut cause drips instead of the 178746Z?

How do I know if the 178746Z is seated properly in the groove?

Can I walk into a local shop for a genuine Pentair 178746Z?

Finding the Correct Pentair Seal In-Store

Confirming the correct SKU helps avoid mismatches and ensures leak-free operation.

Is the Pentair 178746Z diamond seal specific to Clean & Clear RP filters?

How do I confirm in-store that IÕve picked up the right 178746Z part?

Can I compare the 178746Z seal with other Pentair seals before purchase?

Is the 178746Z normally stocked at pool supply counters near me?