• Pentair 180007 FNS Plus D.E. Filter
  • 180007 FNS Plus D.E. Filter
  • Pentair 180007
  • FNS Plus D.E. Filter
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Pentair

Pentair 180007 FNS Plus D.E. Filter | 36 SQ FT

Pentair 180007 FNS Plus D.E. Filter | 36 SQ FT

Replace your D.E filter and restore optimal filtration removing particulates that cause cloudy water with the Pentair 180007 FNS Plus D.E. Filter. This 36 SQ FT Filter provides crystal clarity for your pool water giving your pool a professionally maintained look. Additionally, this filter features materials that will last longer in harsh environments, like the desert. 

What makes the Pentair 180007 FNS Plus D.E. Filter the best choice for crystal-clear pool water?

Pentair 180007 FNS Plus D.E. Filter uses diatomaceous earth (D.E.) and will filter out debris from your pool water down to 5 microns and larger in size. This provides you with crystal clear water that sand filters and cartridge filters cannot compare with. Furthermore, this possible because D.E. powder sticks to the filter grids creating a microscopic filtration barrier trapping smaller debris.

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Key Features

  • 36 Sq Ft Filtration Area – Ideal balance of performance and efficiency for small to mid-size in-ground pools
  • D.E. Filtration Technology – Removes ultra-fine particles for superior water clarity
  • Service-Ease™ Grid Pack – Quick access internal assembly simplifies cleaning and maintenance
  • Fiberglass-Reinforced Tank – Built for durability in high-heat and high-pressure environments
  • High Flow Internal Design – Maximizes water circulation and system efficiency
  • Vertical Grid Layout – Improves dirt loading capacity and extends cleaning cycles

Technical Specifications

  • Series: FNS Plus
  • Filter Type: D.E. (Diatomaceous Earth)
  • Filtration Area: 36 Square Feet
  • Maximum Flow Rate: 72 GPM
  • D.E. Requirement: Approx. 3.6 lbs per charge
  • Tank Material: Fiberglass-Reinforced Polypropylene
  • Application: In-Ground Residential Pools
  • Valve: Multiport valve sold separately

Specs

Pro Tip For: Pentair 180007

Make sure to recharge your D.E. filter with 3.6 lbs of D.E. after backwashing. If you undercharge your filter this can lead to reduced filtration efficiency. Also, it is important to remember that overcharging the filter will increase pressure, by clogging the grids with to much D.E. powder. If you overcharge make sure to check your pressure gauge often and if the PSI rises 8–10 PSI above normal, then you should back wash.

Expert Comparison & Pro Tips For: Pentair 180007

When comparing The Pentair 180007 D.E. filter to sand or cartridge filters. The D.E filters provide a smaller micron filtration, leading to less visible debris and improved water clarity. Also, sand filters also require back washing and time consuming sand changes. Furthermore, cartridge filters need a recommended cleaning of 2-4 times a year. With a D.E. system you can easily back wash the filter before you recharge the filter with D.E. powder. This makes D.E. easier to clean only requiring 2 cleanings a year and grids will easily rinse clean with a hose.

Our Expert Verdict: Real-World Results For Pentair 180007

The Pentair FNS Plus series of D.E. filters provide homeowners with noticeable results from the start leading to crystal clear water clarity. This series of filters have a balanced size making it easier to fit in most residential equipment pad areas. If properly maintained this filter can last for many years. This makes it the perfect option for homeowners that need high water clarity, filter efficiency, and longevity.
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Best For: Ideal Pool Types & Conditions For: Pentair 180007

The Pentair 180007 is perfect for pool owners that want a higher clarity of water or have lots of small debris. This filter provides filtration for pools that are roughly around 18,000–22,000 gallons, also pump size and turnover goals should be considered. It is best for homeowners that deal with fine dust, pollen, or frequent swimmer load. It will also plumb in as a direct replacement for older FNS models given the plumbing layout matches.

Best for:

  • In-ground pools
  • Pools in dusty or desert climates
  • Homeowners prioritizing water clarity
  • Replacing older Pentair FNS Plus filters

Not ideal for:

  • Small above-ground pools
  • Owners seeking zero-maintenance filtration
  • Systems without backwash capability.

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