By Waterway



Model # 570-0325-07

Warranty 1 Year

Alternate Part #'s WW570032507, WWP570-0325-07

Product Description

Pressure Relief Valve Assy 

Tank Body O-Ring 

Drain Plug 

Replacement Cartridge 


  • NSF Listed
  • 2 1/2" internal piping
  • 2 1/2" Valve Bulkhead Unions (includes 2" reducers)
  • Fiberglass reinforced polypropylene body for superior strength
  • Industry proven quad-cartridge elements layout
  • “Start-Service” dial on stainless steel pressure gauge
  • 1 1/2" bottom clean-out port
  • Convertible to D.E. by simply changing internals
  • Cluster of 4 cartridge elements for ease of maintenance and longer cleaning cycles.
  • Heavy Duty Manual Air Relief ValveFlexible & sturdy, 3 segmented band clamp

Crystal Water - Cartridge


Product Specifications

Filtration Area:
325 sq. ft.
Plumbing Size:
1-1/2 - 2-1/2" in.
Turnover 8 Hrs.:
57,600 gal.
GPM Rating:
Pool Type:
In Ground
Flow Rating:
112 GPM
Filter Type:

?     Asked on 3/10/2020by Erika Colee

I have an inground pool, with 1 HP pump motor. Is this filter too big for my pool? 25,000 gallons. I live in N. central Texas. Pool season is May until september depending on the weather. I have kept the pool open until November a few years.

A  Answered on 3/11/2020 by InyoPools Product Specialist Lennox H.

Hi, Erika. This filter is NOT too big for your pool. It can be used if your pump's flow rate does not exceed 120 GPM. 

?     Asked on 3/21/2020by Fred Natale

I replaced my pool pump in 2019 with the INYOPOOLS Pentair WFE-4 1HP pump. I am also replacing the pool filter in 2020. Is this filter too big for my pool? 11,000 gallons. I live in Phoenix. Not sure what the flow rate is for the Pentair WFE-4 that I installed in 2019. PVC Piping is 2"

A  Answered on 3/21/2020 by InyoPools Product Specialist Patrick P.

Hi Fred, Thank you for the detailed information that is super helpful. Yes this would be the perfect sized filter for the pool you described. The Waterway Crystal Water 325 Filter would be our suggestion for your pool and your Pentair WFE-4 pump.

  • Commented on 3/21/2020 by Product Owner

    Thank you Patrick P for your expert help. I made the purchase this evening and looking forward to receiving the new filter.

    • Commented on 3/23/2020 by InyoPools Product Specialist Patrick P.

      Fred, thanks so much! We think you will be quite happy with this filter.

?     Asked on 4/2/2020by Michael McDonald

I am going to replace an old Jacuzzi Cyclops 330 filter. Your web page suggested a Crystal Water 325 sqft Pool Cartridge Filter over the Haward Swimclear filter of equivalent size. Is this still your recommendation? Pool is 28,000 gal with a pentair inteliflow 1.5 hp

A  Answered on 11/11/2020 by InyoPools Product Specialist Megan C.

Yes, we recommend the Crystal Water 325 sqft Pool Cartridge Filter - 570-0325-07 for the replacement. 

?     Asked on 5/6/2020by Edd

Have a Pentair Superflo single speed 1.5 hp pump new last year. A 20'X40" inground pool approx. 30,000 gallon. Currently using sand filter looking to go to cartridge. Is this the correct size filter?

A  Answered on 12/9/2020 by InyoPools Product Specialist Hector F.

Hi Edd, as long as the gallons per minute(GPM) rating on your current filter matches or is less than the filter you are considering then it will be good. If that information is not legible then here is a guide that we put together called "How To Size a Pool Filter" that should assist. 

?     Asked on 12/12/2020by glenn thorne


A  Answered on 12/15/2020 by InyoPools Product Specialist Hector F.

Hi Glenn, yes the filter cartridge elements are included with this filter. The part number for the replacements if needed is PL0119.


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