Pentair FNS Plus 48 sq. ft. DE filter FNSP48, EC-180008Pentair FNS Plus DE Filter, 48 Sq. Ft., FNSP48, EC-180008 In stock$1,40199
Pentair FNS Plus 48 sq. ft. DE filter FNSP48, EC-180008
Shop all Pentair

Pentair FNS Plus DE Filter, 48 Sq. Ft., FNSP48, EC-180008

Ask a questionMPN EC-180008
$1,40199
FREE Delivery
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • 48 sq. ft. of grid Vertical grid D.E. filtration for inground pools.
  • Reinforced tank Fiberglass reinforced polypropylene, corrosion resistant for long life.
  • 2 in. connections Full 2 in. plumbing ports for maximum flow.
  • 1 in. drain A conveniently placed 1 in. drain for faster cleanout and 100 percent draining.
  • D.E. polish Diatomaceous earth filters finer than sand or cartridge, for the clearest water.
  • Genuine Pentair Model FNSP48, part number EC-180008.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Pentair FNS Plus DE Filter, 48 Sq. Ft., FNSP48, EC-180008, SKU PAC-05-0084. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Pentair FNS Plus DE Filter, 48 Sq. Ft., FNSP48, EC-180008
Pentair

FNS Plus DE Filter, 48 Sq. Ft., FNSP48, EC-180008

$1,40199
Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400
Pentair

Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400

$40599
Pentair 60 Sq Ft Element Assembly Complete, 59023300
Pentair

60 Sq Ft Element Assembly Complete, 59023300

$45899
Pentair 2" Bottom Mount Pressure Gauge, 1/4" NPT, 15060-0000TZ
Sta-Rite

Pentair 2" Bottom Mount Pressure Gauge, 1/4" NPT, 15060-0000TZ

$5299
Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800
Pentair

Genuine OEM High Flow Manual Air Relief Valve, 98209800

$3999
Pentair Genuine OEM Clamp Kit with Tension Control, 190003
Pentair

Genuine OEM Clamp Kit with Tension Control, 190003

$31099
Pentair Brass Plated Stainless Steel 1/4 in.-20 Hex Nut for DE Filters and Multiport Valves, 98211400
Pentair

Brass Plated Stainless Steel 1/4 in.-20 Hex Nut for DE Filters and Multiport Valves, 98211400

$799
Subtotal

Similar products

Other products people compare with this one.

Pentair FNS Plus FNSP60 60 sq ft vertical grid DE filter Pentair FNS Plus DE Filter 60 sq ft FNSP60, EC-180009$1,50900 Hayward W3DE6020 Pro-Grid 60 sq ft vertical grid DE pool filter, valve not included Hayward Pro-Grid 60 Sqft DE Pool Filter, Valve Not Included, W3DE6020$1,70900 Web Price Hayward Pro-Grid W3DE4820 48 sq ft vertical grid DE pool filter Hayward Pro-Grid 48 Sq Ft DE Pool Filter, Valve Not Included, W3DE4820$1,55900 Web Price Hayward W3EC65A Perflex Extended-Cycle 34 sqft D.E. pool filter Hayward Perflex Extended-Cycle 34 sqft D.E. Pool Filter, W3EC65A$1,14900 Web Price Hayward W3EC40AC Perflex Extended-Cycle 20 sq ft DE pool filter with clamp lid Hayward Perflex Extended-Cycle 20 SQFT DE Pool Filter, W3EC40AC$56900 Pentair Triton II TR100 30 in. side mount sand filter tank, EC-140210 Pentair Triton II TR100 30" Side Mount Sand In-Ground Pool Filter, EC-140210$1,62199 Pentair Clean & Clear CC200 200 sq ft cartridge pool filter, EC-160318 Pentair Clean & Clear CC200 200 sq ft Cartridge Pool Filter, EC-160318$1,06900 Web Price Waterway 522-5167-6S ClearWater II 150 sq. ft. cartridge filter system with 1.5 HP Hi-Flo II two speed pump Waterway 150 Sq. Ft. 1.5 HP 2 Speed Clearwater Cartridge Filter System, 522-5167-6S$92799 Pentair Clean & Clear RP EC-160354 100 sq ft cartridge pool filter Pentair Clean & Clear RP 100 sq ft Cartridge Pool Filter, EC-160354$64900 Web Price Pentair Clean & Clear Plus 420 sq ft cartridge pool filter, EC-160301 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301$1,61900 Web Price
Pentair Clean & Clear Plus 520 sq ft cartridge pool filter, EC-160332 Pentair Clean & Clear Plus 520 sq ft Cartridge Pool Filter, EC-160332$1,94299 Waterway ClearWater II 520-5147-6S 100 sq ft cartridge filter system with 1.5 HP pump Waterway 100 SqFt ClearWater II Cartridge Filter System for Above Ground Pool 1.5HP, 520-5147-6S$76899 Pentair Clean & Clear RP 200 sq ft cartridge filter, EC-160353 Pentair Clean & Clear RP Cartridge Filter, 200 sq ft, EC-160353$1,04900 Web Price AquaStar PLF35000 PipeLine cartridge filter AquaStar PipeLine Cartridge Filter for Pools up to 35,000 Gallons, PLF35000$1,06499 Pentair Tagelus TA100D 30 in. top mount sand filter with 2 in. multiport valve, almond Pentair Tagelus TA100D Top Mount 30 in. Pool Sand Filter with 2 in. Multiport Valve, EC-145240$1,75999 Pentair Clean & Clear Plus 320 sq ft cartridge pool filter EC-160340 Pentair Clean & Clear Plus 320 sqft Cartridge Pool Filter, EC-160340$1,45399 Pentair EC-160317 Clean & Clear Plus 150 sq ft cartridge pool filter Pentair Clean & Clear Plus 150 sq ft Cartridge Pool Filter, EC-160317$90900 Web Price Pentair Sand Dollar SD80 26 in. sand filter with top mount 1-1/2 in. multiport valve Pentair Sand Dollar SD80 26" Pool Sand Filter with Top Mount 1-1/2" Multiport Valve, EC-145333$80079 Pentair Clean & Clear 100 sq ft cartridge pool filter EC-160316 Pentair Clean & Clear 100 sqft Cartridge Pool Filter, EC-160316$76900 Web Price Pentair FNS Plus 36 sq. ft. vertical grid DE filter FNSP36, part EC-180007 Pentair FNS Plus 36 sq. ft. DE Filter FNSP36, EC-180007$1,22900 Web Price

From Pentair

Your trusted source for all things pool. Pentair

Pentair equipment

Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001 Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301 Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Shop Pentair equipment

Genuine Pentair parts

Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198 Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800 Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400 Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Shop Pentair parts
Pool lighting: a backyard pool and spa lit in blue and green at nightPool water treatment: three people floating on rings in clear blue water, seen from abovePool cleaners: a toddler in flower sunglasses laughing in a yellow ring, held by her mother
Pentair makes pumps, filters, heaters, salt chlorinators, cleaners, lighting and automation for pools and spas.Shop all Pentair

Product details

The Pentair FNS Plus 48 is a vertical grid diatomaceous earth filter for inground pools, model FNSP48, part number EC-180008. With 48 square feet of grid area it handles larger residential pools and delivers the fine filtration D.E. is known for.

Tank and plumbing

The tank is fiberglass reinforced polypropylene, chosen for strength and corrosion resistance over a long service life. Plumbing connections are a full 2 in. for maximum flow, and a 1 in. drain is positioned so the tank cleans out faster and drains completely.

Living with D.E.

D.E. grids catch finer particles than sand or cartridge media, which is why D.E. pools tend to look the clearest. In exchange, you backwash when pressure rises and add fresh D.E. through the skimmer to recoat the grids. This filter ships by freight.

Specifications
Brand Pentair
Manufacturer part number EC-180008
Model FNSP48
UPC 788379500580
Type Vertical grid D.E. filter
Filter area 48 sq. ft.
Tank Fiberglass reinforced polypropylene
Plumbing connections 2 in.
Drain 1 in.
Application Inground pools
Shipping weight 76 lb
Ships Freight

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

Customer reviews

More from Pentair

Pentair SuperFlo VS EC-342001 1.5 HP variable speed pool pump, front view Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001$1,48900 Pentair SuperFlo EC-348190 single speed pool pump, 1 HP, 115/230V Pentair SuperFlo 1 HP Single Speed Pool Pump, 115/230V, EC-348190$74800 Pentair WhisperFlo VS EC-011533 2.6 THP variable speed pool pump, top view Pentair WhisperFlo VS 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900 Pentair 262506 HiFlow 1.5 in. six way clamp style multiport valve Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20999 Pentair EC-520556 IntelliChlor 110/220V power center Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900 Web Price Pentair 523769 IntelliChlor Plus and LT replacement sensor board Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$40499 Pentair 350305S 3.2 kW 10 pole variable speed motor for IntelliFloXF and IntelliFlo 2 VST pumps Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199 Pentair 523735-EC IntelliChlor Plus40 salt chlorine generator cell Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900 Web Price Pentair Rainbow 320 in-line chlorinator R171096, front view Pentair Rainbow 320 In-Line Chlorinator, R171096$14999 Pentair 190003 tank clamp kit with tension control for Clean and Clear Plus, FNS Plus and Quad DE filters Pentair Genuine OEM Clamp Kit with Tension Control, 190003$31099
Pentair IntelliChlor LT25 salt chlorine generator cell 523747-EC Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,15699 Pentair IntelliFlo VS+SVRS variable speed pool pump, EC-011057 Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, EC-011057$2,39900 Pentair 170145 cartridge pack for Sta-Rite System 3 S7M120, inner and outer cartridges Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$47999 Pentair 261055 SM-20-3 2 in. side mount multiport valve kit, front view Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$30899 Pentair 523770 IntelliChlor Plus replacement controller (HMI), black Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$39599 Pentair 261152 SM20-2 2 in. side mount multiport valve kit for DE filters Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$30799 Pentair 357149 WhisperFlo and IntelliFlo volute housing replacement kit, front view Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$29699 Pentair MicroBrite Color LED pool light EC-620425, 12 volt, 14 watt, with 100 ft cord Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900 Pentair 59023400 FNS Plus 48 sq ft complete DE grid assembly Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$40599 Pentair Amerlite EC-602128 500W 120V inground pool light with stainless steel facering Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900 Web Price

Questions and answers

What people ask about this product, answered by our pool techs.

How is a D.E. filter different from sand or cartridge?
The grids inside are coated with a layer of diatomaceous earth powder, and that coating traps far finer particles than sand or a cartridge. After each backwash you add fresh D.E. through the skimmer to recoat the grids.
What are the plumbing sizes?
2 in. connections for the inlet and outlet, and a 1 in. drain at the bottom of the tank.
Is this the complete filter?
Yes. This is the FNS Plus 48 sq. ft. filter, model FNSP48, part number EC-180008.
How does it ship?
By freight carrier. An inground D.E. filter of this size is too large for parcel service, so expect a pallet delivery to the curb.
Ask your own question