SW-80-513 | Swimables Pentair FNS Plus Push & Pull Backwash O-Ring Kit

The Swimables SW-80-513 O-Ring Kit is a complete replacement set designed to restore proper sealing performance in Pentair FNS Plus push-pull and slide-style backwash valves. This kit replaces the O-513 and includes all essential O-rings needed to reestablish a leak-free backwash operation. Crafted from resilient, chemical-resistant elastomers, the kit eliminates flow bypass and improves valve response. Ideal for periodic maintenance or when leaking occurs, it’s a simple and effective solution to help maintain full filtration efficiency.

Highlights

• Complete OEM-Style O-Ring Set: Contains all necessary O-rings—matching OEM O-513—so you can address all sealing surfaces in push-pull and slide backwash valves in one kit.

• Leak-Proof Seal Restoration: Replaces worn or hardened rings to renew a tight seal, preventing water bypass and ensuring backwashing operates correctly and efficiently.

• Chemical and Wear-Resistant Materials: Built from premium, durable elastomers that resist chlorine, ozone, and pool chemicals while maintaining flexibility through repeated cycles.

• Minimizes Maintenance Downtime: Swaps into valves with ease—no tools or machining required—making it fast and practical for routine maintenance or emergency seal repairs.

• Enhances Valve Performance and Longevity: A timely replacement helps reduce valve fatigue, improves operational smoothness, and helps extend the service life of the entire backwash assembly.

Includes

• (5) O-Rings

Compatibility

• Pentair FNS Plus Push & Pull Backwash Valves

Additional Info

The Swimables SW-80-513 O-Ring Kit replaces Pentair O-513 and restores sealing performance in FNS Plus push-pull and slide backwash valves. This section answers installation, troubleshooting, and in-store buying questions.

Installing the SW-80-513 Kit

This kit includes five O-rings designed to fit all sealing surfaces of Pentair FNS Plus backwash valves.

How do I install the Swimables SW-80-513 O-rings in my FNS Plus backwash valve?

Does the SW-80-513 kit work on both push-pull and slide valve styles?

Do I need lubricant when installing the new SW-80-513 O-rings?

Can I buy the SW-80-513 O-ring kit in-store today?

Fixing Valve Leaks With New O-Rings

Leaks or water bypass are often caused by worn, brittle, or flattened O-rings.

Why is my Pentair valve still leaking after installing the SW-80-513 kit?

Could worn grooves prevent the SW-80-513 O-rings from sealing properly?

How do I check if all five O-rings are seated correctly in the valve?

Where can I walk in locally for the SW-80-513 O-ring replacement kit?

Finding the Correct Seal Kit In-Store

Matching the right part ensures a tight seal and efficient backwash performance.

Is the Swimables SW-80-513 the same as Pentair O-513?

How do I confirm at the counter that I have the correct SW-80-513 kit?

Can I compare the SW-80-513 with other Pentair O-ring kits before purchase?

Is the SW-80-513 normally stocked at pool supply shops near me?