Pentair FNS Plus Back-Up Ring
Best replacement part for pool owners maintaining vertical grid filters.
This stainless steel ring is the unsung hero that keeps your filtration system’s internal structure from buckling under pressure. While it’s a simple, utilitarian component, opting for the genuine replacement ensures a precise fit that prevents the costly tank failures often caused by cheaper, ill-fitting alternatives.
$105.56
at
PoolWeb
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Who it's for
- Pool owners seeking reliable replacement parts for long-term maintenance
- DIY maintainers wanting a guaranteed fit without compatibility guesswork
- Homeowners prioritizing the structural longevity of their pool filtration equipment
Who should skip it
- Owners of Clean & Clear or Quad DE filter systems
- Inexperienced users who prefer simple, tool-free maintenance tasks
- Budget-conscious shoppers looking for the lowest possible repair cost
Performance breakdown
Material Durability
Stainless steel construction resists corrosion from harsh pool chemicals effectively.
OEM Compatibility
Guaranteed fit for Pentair systems ensures seamless, hassle-free installation.
Structural Integrity
Provides essential reinforcement to maintain tank shape under high pressure.
Installation Ease
Straightforward design allows for quick replacement during routine filter maintenance.
Longevity
Robust build quality minimizes the need for frequent, repetitive repairs.
System Reliability
Prevents internal tank failures by maintaining precise component alignment.
Key Specs
Material
Stainless steel
Compatibility
Clean and Clear Plus Cartridge Filters, FNS Plus D.E. Filters, and Quad D.E. Filters
Manufacturing Date
Filters manufactured after 3/03
Tank Diameter
19 inches
Pool Type
In-ground
Filter Type
Cartridge and Diatomaceous Earth
Corrosion Resistant
Yes
Shipping Weight
11.6 lbs
Know before you buy
Still have a question?
Ask Metto anything about the Pentair FNS Plus Back-Up Ring before you decide.
