?     Asked on 6/26/2015by Lee

Is the pentair filter bottom part #17857, catalog#4654-85 for the pentair d. e. quad 80 filter?
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A  Answered on 6/26/2015 by InyoPools Product Specialist Hector F.

Yes that is correct. Please be advised that sometimes due to expanding and contracting the lids may not match up with a new base.
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?     Asked on 10/11/2015by J

wil this fit replacement part number 17-8585
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A  Answered on 10/13/2015 by InyoPools Product Specialist Lennox H.

Hi J, The Tank Bottom Assy., (after 11/98) (178578) would be the correct bottom that can be use with the Clean & Clear Plus 520 (After 11/98) Cartridges p/n R178585.
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?     Asked on 5/31/2016by arron

which tank fits 17557 please also which unions do i order with it
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A  Answered on 5/31/2016 by InyoPools Product Specialist Patrick P.

Hi Arron, I think you may be missing a digit in your part #, can you double check your part #?
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?     Asked on 7/23/2016by jon dillingham

I have a Pentair Pool Products Clean Clear Plus Tank and I need a new bottom tank for my pool fifter. I'm Med # CCP320 ? # Repl # 17-8580 Help Help - Thank you..
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A  Answered on 7/24/2016 by InyoPools Product Specialist Lennox H.

Hi Jon, This tank bottom assembly is the correct replacement for the CCP320 if it was manufactured after 11/98.
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?     Asked on 7/23/2016by Jon Dillinghm

Hi Arron, I think you may be missing a digit in your part #, can you double check your part #? Hi my name is Jon D. The Part/Mod # CCP320 on the lable, and Rep# 178580
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A  Answered on 7/25/2016 by InyoPools Product Specialist Lennox H.

Hi Jon, The manufacturer's part number is 178578 which is the replacement bottom assembly for the CCP320 filter manufactured after 11/98.
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?     Asked on 7/15/2017by Mike Arquett

i have a cc240p model part #178635 can you tell me which bottom i need thanks
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A  Answered on 7/15/2017 by InyoPools Product Specialist Alex V.

Mike, This bottom tank assembly tank will work with the CCP240 - CCP520 filters that were manufactured after 1998. 
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?     Asked on 9/7/2017by eduardo m martinez

How i may know when my pentair filter was manufactured before or after 11/98
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A  Answered on 9/8/2017 by InyoPools Product Specialist Lennox H.

Hi, Eduardo. You will need to locate the unit's serial number or the date code punched on the label. 
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?     Asked on 6/16/2018by Inyo Visitor

I have a pentair filter part #160332. i need to purchase the bottom tank assemble
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A  Answered on 6/16/2018 by InyoPools Product Specialist Lennox H.

Hi. This is the correct Tank Bottom Assy - 178578 if your unit was manufactured after Nov. 1998. 
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?     Asked on 8/21/2018by peter kolster

I have a bottom tank number 178559 as it was purchase before 11/98. What can I replace it with?
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A  Answered on 8/22/2018 by InyoPools Product Specialist Hector F.

Unfortunately, there is no replacement for that part but you can always confirm directly with Pentair at 1-800-831-7133
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?     Asked on 8/26/2019by Mike Arpaia

Hi I have a CCP520 filter.( Atlas I think it is a 520) The bottom has a crack and I cannot find a dateI cannot find a dateAttached is a photo of all the numbers I can find. Would you be able to tell me what part I would need to get. Thanks Mike

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A  Answered on 9/20/2019 by Industry Professional

It looks like you have the 160332 520SQF CLEAN & CLEAR PLUS CARTRIDGE FILTER. Please see attached schematics for the part numbers. Be sure to look at the 520 parts.

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?     Asked on 12/6/2019by Michael Burnell

Do thes filter tanks need to be painted.The one I have now is about 10 years and has developed a small crack...Is it repairable maybe with fiberglass......................
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A  Answered on 12/9/2019 by InyoPools Product Specialist Lennox H.

Hi, Michael. Some have successfully repaired small cracks in their filters using various methods. It will be best to replace it, some repair jobs can create a larger issue. 
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?     Asked on 4/1/2020by Ralph Motte

Does this filter bottom fit the 180009 Pentiar as well
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A  Answered on 4/20/2020 by InyoPools Product Specialist Patrick P.

Hi Ralph, No it does not, you would need this Pentair FNS Plus 60 Bottom Tank Assembly
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?     Asked on 4/4/2020by Aaron

Will this work on my 178557 ccp420?

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A  Answered on 4/4/2020 by InyoPools Product Specialist Patrick P.

Yes this will work as the proper bottom replacement for your Clean and Clear Plus ccp420
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?     Asked on 8/22/2020by Amanda Zola

Is this the correct bottom for my model?

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A  Answered on 8/26/2020 by InyoPools Product Specialist Lennox H.

Hi, Amanda. Yes, it is. 
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?     Asked on 9/27/2020by Frank vonRanzow

Will this work on a Quad 60 DE filter?
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A  Answered on 12/16/2020 by InyoPools Product Specialist Hector F.

Hi Frank, the tank bottom for the Pentair Quad D.E. filter is part number 195999
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?     Asked on 10/11/2020by Jeff

Is this the correct bottom replacement?

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A  Answered on 10/23/2020 by InyoPools Product Specialist Joe S.

Hello Jeff, yes based on the Clean & Clear Plus Cartridge Filter 420 sqft. - 160301 the Tank Bottom Assy., (after 11/98) (178578) would be correct.
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?     Asked on 10/30/2020by Thomas R Robertson

I have a Hayward filter. The bottom has a major crack and I need a new one. I've attached a picture of the label on the top. Is it compatible with your product?

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A  Answered on 11/9/2020 by InyoPools Product Specialist Hector F.

Hi Thomas, unfortunately, the Hayward Super Star Clear series filter tank bottoms are no longer fabricated with no listed replacement. You may be able to locate a used one somewhere or consider replacing the entire filter. The Waterway model 570-0525-07 cartridge filter is a suitable replacement option. 
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?     Asked on 4/29/2021by Dave

Another of those "is this the correct part for my filter?" questions. I know the pool pre-dates 1998 but no idea if previous owners replaced the filter at any point.

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A  Answered on 4/29/2021 by InyoPools Product Specialist Danny R.

Yes.  Based on your picture this Pool Filter looks like it is made after 1998.  And this would be the correct bottom assembly for your pool filter.
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?     Asked on 5/15/2021by Kenneth Kelleher

I have a older Pentair pool cartridge filter .Do not know the year or model was here when we purchased home. I noticed 2 cracks on the inside of the Outlet Fitting where it passes through to the inside of the bottom portion of the tank Is this black PVC connection a replaceable part of do I have to purchase a whole new bottom portion of the tank ?
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A  Answered on 5/18/2021 by InyoPools Product Specialist Patrick P.

There should be a label on the side of your filter, could you supply us with the information from that label? Or there should be a part # embossed into the plastic end cap of the cartridge, could you supply us that information? Simply click the reply link below to provide the requested information so we may make the appropriate suggestion.
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?     Asked on 5/15/2021by Raphael Champagne

I need the top, are they available?
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A  Answered on 5/15/2021 by InyoPools Product Specialist Danny R.

There are different sizes of the top lid assembly.  It will depend on the size of your Filter.  These are going fast due to the Texas Freeze.  Here is a link to the parts breakdown for your filter.  The lid is near the top of the page...Pentair Clean & Clear Plus Cartridge
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?     Asked on 8/17/2021by Inyo Visitor

The numbers don't match but would this work to replace this

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A  Answered on 8/18/2021 by InyoPools Product Specialist Craig C.

Hello.  Pentair Products part 178578 is the correct part number for the Tank, Bottom Assembly for the Pentair Clean & Clear Plus Filter Series.  Specifically, it will fit your Clean & Clear Plus Filter model CCP520.  Attached please find an exploded parts diagram for the Clean & Clear Plus Cartridge Filter Series.   Pentair Clean & Clear Plus Cartridge
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?     Asked on 4/18/2022by Donald Burton

After replacing the bottom drain plug twice it still leaks now a lot when system is running. If it is over tightened it blow out under running pressure. Can it be fixed or do I need to replace Pentair Clean & Clear Plus Tank Bottom Assy.? If replacement is necessary, do the black connectors simply unscrew so I can slide pipes into new unit and tighten? I am considering doing it my self.

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A  Answered on 4/18/2022 by InyoPools Product Specialist Craig C.

Hello Donald.  From the information provided, it appears that the drain plug threads have deteriorated to a condition that is preventing a water-tight seal.  There is no thread repair available.  A Lower Tank Bottom Assembly replacement appears to be the solution.   Pentair Clean & Clear Plus Tank Bottom Assy., (after 11/98) (178578)  The Lower Tank Bottom Assembly connection points are compatible with the existing pipe connectors.   
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?     Asked on 2/3/2023by Chris

Wanting to make sure we are ordering the correct filter base. It has developed a crack and we want to replace the base and include the pipe fittings and the drain plug. Please review the images below and let me know Thanks

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A  Answered on 2/3/2023 by InyoPools Product Specialist Rich N.

Hi Chris, the Pentair Clean & Clear Plus Bottom Tank Assembly, After Nov. 98 - 178578 will be a perfect replacement for the bottom tank on your 420 Sq. Ft. Pentair Clean & Clear Plus Cartridge Filter.  Be sure to keep the sticker from it or write down the information in case you need anything for it in the future.  
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