Pentair 180009 FNS Plus 60 D.E. Filter

The Pentair 180009 FNS Plus 60 D.E. Filter is a 60 sq. ft. vertical grid diatomaceous earth filter designed for superior water clarity, higher filtration capacity, and longer cleaning cycles. It is an ideal upgrade for pool owners looking to improve performance while maintaining the powerful filtration that D.E. systems are known for.

Product Overview

The FNS Plus 60 features a fiberglass-reinforced polypropylene tank and a vertical grid design that captures even the finest debris. With increased filtration area compared to smaller models, this unit allows for longer run times between cleanings and improved overall system efficiency.

Key Features

• 60 sq. ft. D.E. filter for maximum water clarity and higher capacity
• Larger filtration area allows for longer cleaning cycles and better debris handling
• Vertical grid design captures fine particles for crystal clear water
• Fiberglass-reinforced polypropylene tank for durability and long-term performance
• 2 inch plumbing connections for compatibility with most modern pool systems
• Service-friendly design for easier maintenance and internal access

Recommended Use

This filter is ideal for medium to large residential in-ground pools or for pool owners looking to upgrade from a smaller filter. The increased filtration area helps reduce how often the filter needs to be cleaned while maintaining excellent water quality.

Important Installation Note

This filter uses 2 inch plumbing connections, but minor plumbing adjustments may be required depending on your current setup. We recommend confirming your existing system layout and space before installation.

Need Help Confirming Fit?

If you are unsure whether this is the right size for your pool, contact us before ordering. Send us your pool size, dimensions, or a photo of your current filter, and we will help confirm the best option for your system.

Replacing an Older Pentair 4000 Series or SMBW Filter?

The Pentair FNS Plus 60 is a common upgrade replacement for older Pentair 4000 Series and SMBW D.E. filters. If your existing unit is no longer serviceable, moving to a larger 60 sq. ft. filter can improve performance and extend the time between cleanings.

This model maintains the same D.E. filtration style while offering increased capacity, better efficiency, and full parts availability going forward.