Pentair 195339 Backup Ring FNS Plus CNC Plus Stainless Steel

What This Part Is Used For
Pentair 195339 Backup Ring FNS Plus CNC Plus Stainless Steel is a replacement backup ring for compatible Pentair FNS Plus and CNC Plus filter systems. It supports proper sealing within stainless steel filter assemblies.

Why This Part Matters
A backup ring helps maintain correct O-ring compression under pressure. Replacing a worn ring restores secure sealing and prevents leaks. Proper internal sealing protects filter performance and system pressure.

Key Features and Specifications

• Manufacturer part number 195339
• Backup ring
• For FNS Plus and CNC Plus stainless steel filters
• Supports internal sealing
• Replacement filter component

Installation and Fitment Guidance
Relieve filter pressure before disassembly. Confirm by manufacturer part number before ordering. Inspect O-rings and sealing surfaces during installation.

About the Pentair Brand
Pentair FNS Plus and CNC Plus filters are widely used in pool systems. Their stainless steel assemblies are engineered for durability and serviceability. Genuine Pentair parts help maintain proper filtration performance.

Common Service Context
Common during filter rebuilds, replacing internal seals, or resolving minor pressure leaks.