By Pentair Pool Products



Model # EC-188594

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 188594, EC188594, PAC-05-9594, PENEC-188594

Product Description

Inyo Recommended Filters

The Quad DE™ gives provides the most efficient filtration possible, with the added convenience of cartridge media. This filter features four easily accessible and removable D.E. cartridges that simplify maintenance and save your time.

  • Large-capacity cartridges provide maximum filter surface area for greater dirt-trapping capacity and longer intervals between cleaning.
  • Three simple cleaning options to choose from—backwash and recharge like traditional DE filters, remove and rinse off the DE cartridges, or remove the lid, leave the DE cartridges in place, open the drain plug, and rinse.
  • Super-slick cartridge surfaces allow dirt to easily rinse off.
  • Fiberglass reinforced polypropylene tank for exceptional strength and long life.

Product Specifications

Multiport Valve:
Filtration Area:
100 sq. ft.
Flow Rating:
160 GPM
DE Required:
10 lbs.
Pool Type:
In Ground
Filter Type:

?     Asked on 4/26/2013by Guest

I am replacing my old Sta-Rite filter, what else besides the quad filter do I need to buy?

A  Answered on 4/26/2013 by InyoPools Product Specialist Patrick P.

The only piece of equipment necessary for installation is the purchase of a valve.  The valve options for the Quad D.E. Filter are listed by port size, measure your pipes to determine the best fit for you. 261173 - 1.5" Threaded Multiport Valve 261055 - 2" Threaded Multiport Valve

?     Asked on 4/7/2015by Paco

Does the filter include the cartridges or are they sold separately?

A  Answered on 4/7/2015 by InyoPools Product Specialist Lennox H.

Paco, The filter's come with this unit, the valve is sold separately.

?     Asked on 10/3/2016by Stephen Argue

Does this unit have 2-1/2 inch fittings?

A  Answered on 10/3/2016 by InyoPools Product Specialist Scott W.

Yes, the fittings are 2.5"

?     Asked on 11/27/2016by Thom

If the Pentair Quad 80 and Pentair Quad 100 both flow a maximum flow rate of 160 GPM with the exact same hourly turnover capacity, why would the Pentair 100 be considered the better of the two options?

A  Answered on 11/28/2016 by InyoPools Product Specialist Andy O.

Hello Thom- The Pentair Quad 80 188593 and Pentair Quad Cartridge / DE Filter 100 - 188594 do have the same flow rating, but the Quad 100 has more filtering area meaning it can clean more and get dirtier between cleanings.

?     Asked on 2/12/2017by Gene

I am replacing a FNSP 60 I have a 24,000 gallon pool with a lot of waterfall and rock surfaces which puts a lot of dirt into the pool daily what is my best option for a new filter. I would like to be able to back flush if possible Thanks

A  Answered on 2/13/2017 by InyoPools Product Specialist Scott W.

The 188594 would definitely hold more dirt than the FNS. Easier to clean and replace the cartridges than the grids you currently have.


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