The Pentair 180008 FNS Plus 48 D.E. (Diatomaceous Earth) Filter is a high-capacity filtration system designed for residential in-ground pools. With 48 sq. ft. of vertical grid surface area, it removes ultra-fine debris and particles as small as 2–5 microns for crystal-clear pool water. Built with a durable, corrosion-resistant tank, this model is sold without a valve, allowing custom integration with multiport or slide valves.
Features
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48 Sq. Ft. Grid Surface Area — Enhanced D.E. filtration for superior water clarity
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Durable Reinforced Polymer Tank — Corrosion-proof and weather-resistant
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High-Flow Hydraulic Design — Maintains efficient circulation and pump performance
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Custom Valve Compatibility — Works with Pentair multiport or slide valves (sold separately)
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Compact Footprint — Fits easily on standard equipment pads
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Long-Life Construction — Built for durability and minimal maintenance
Benefits
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Provides exceptionally clear and healthy pool water
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Captures ultra-fine particles to reduce chemical usage
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Durable construction ensures long-lasting performance
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Flexible valve integration allows customized system setup
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High-flow design supports efficient pump operation and energy savings
| 5 star | 51% | |
| 4 star | 49% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Verified ownerWorks exactly as expected. Installed it quickly and no issues so far.
Verified ownerThis made pool maintenance much easier. Definitely recommend.
Verified ownerArrived quickly and worked right out of the box.
Verified ownerPentair FNS Plus works really well. Easy to install and has been reliable so far.
Verified ownerGood product for the price. Shipping was fast and packaging was secure.
Verified ownerInstallation was straightforward and performance has been reliable.
| Specification | Details |
|---|---|
| Product Model | 180008 |
| Brand | Pentair – FNS Plus Series |
| Filter Type | D.E. (Diatomaceous Earth) Filter (Valve Not Included) |
| Filtration Area | 48 sq. ft. |
| Pool Type | In-Ground Pools |
| Particle Removal | 2–5 Microns |
| Maximum Flow Rate | ~96 GPM |
| Tank Material | Reinforced Polymer |
| Valve Compatibility | Multiport or Slide Valve (Sold Separately) |
| Maintenance | Backwash + D.E. Recharge |
| Warranty | Pentair Limited Warranty |
