By Pentair Pool Products



Model # EC-180007

Warranty Ecommerce (EC) products: Products purchased from an Authorized Pentair Online Reseller (products beginning with EC-) receive a one (1) year (parts only) warranty from the date of purchase. The exceptions are: IntelliChlor cells and IntelliFlo SVRS pumps which receive a two (2) year warranty. EC products are not eligible for the bundled three (3) year extended warranty.

Alternate Part #'s 180007, EC180007, PAC-05-0083, PENEC180007

Product Description

Inyo Recommended Filters

Pentair FNS Plus filters are fiberglass reinforced polypropylene of advanced chemical resistant materials for superior strength and reliability. The top manifold design features the Service-Ease grid pack for convenient one-at-a-time grid servicing. Pentiar Backwash valves are sold separately.

  • Superior strength
  • Service-Ease grid pack
  • Continuous High Flow internal air relief*
  • 100% factory tested
  • Top-to-bottom backwash
  • High Flow manual air relief valve
  • Tension Control clamp
  • Black valves and plumbing
  • 1 1/2 in. bottom clean out port
  • 7 1/2 in. centerline bulkhead fittings
  • Warranty 3 Yrs. Shell, 1 Yrs. Parts

Click here for more Pentair Filter

Product Specifications

Multiport Valve:
25 lbs.
Filtration Area:
36 sq. ft.
Flow Rating:
72 GPM
Turnover 8 Hrs.:
34560 gal.
Turnover 10 Hrs.:
43200 gal.
Turnover 12 Hrs.:
51840 gal.
DE Required:
3.6 lbs.
Filter Type:
Pool Type:
In Ground

?     Asked on 5/20/2015by Inyo Visitor

Will this filter a 20'x40' pool 33,000 gal?

A  Answered on 5/21/2015 by InyoPools Product Specialist Patrick P.

This filter can handle up 72 GPM's per minute meaning that it will be able to accomodate 34,000 gallons in an 8 hour time period. So this filter can handle your 33,000 gallon pool, however if your pocket book can handle it I would suggest going up to the FNS Plus 48 Sq. Ft. DE Filter. A larger filter will put less strain on your pump and will have a larger filtering capacity meaning you will not have to backwash your filter as often as with the 36 Sq. Ft. model.

?     Asked on 10/2/2015by carol

I have a purex triton FNSP36 now i have to replace is this the filter that will fit what i have,

A  Answered on 10/7/2015 by InyoPools Product Specialist Lennox H.

Hi Carol, The Pentair FNS Plus 36 Sq Ft Filter w/o Valve would be the correct replacement filter.

?     Asked on 6/4/2016by Nick

I have in ground 16X32 pool( about 22000 gallons) with 300 lb sand filter and 1.5 hp pump , I need to change it to DE filter.what is the right size DE filter should I use and the right pump hp also the right valve. Thanks

A  Answered on 6/9/2016 by InyoPools Product Specialist Lennox H.

Hi Nick, The FNS Plus 36 filter can be a suitable replacement if your pump does not exceed 72 gpm. There are different types of valve that can be used with this filter depending on your pipe size and style valve. You can view the available valve via the Pentair FNS Plus D.E. Filter Parts page.

?     Asked on 9/22/2016by Huynh Vo


A  Answered on 9/23/2016 by InyoPools Product Specialist Alan M.

Hello, how may we assist you?

?     Asked on 12/4/2016by Barney McLaughlin

My pool system is 30 years old. I have a Pac Fab DE filter model WS/FNS-48. The fiberglass is badly deteriorated and I wish to replace this filter with a new filter. Can you advise me of a replacement filter? Thank you

A  Answered on 12/5/2016 by InyoPools Product Specialist Adam Y.

Good morning Barney, You are looking for FNS Plus 48 Sq Ft Filter w/o Valve - 180008. I would also recommend you replace the muti-port. Which you can click on parts by filter and choose whether you have 1.5 inch or 2" plumbing.


Est. Repair Time

Less than 1 hr

Tools Needed

large channel locks and pipe dope.

Old on died.

Written on 9/22/2020 by Guest

Works like a champ. I hope it lasts 20 yrs.

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