?     Asked on 2/11/2015by Tony

Hi, I have a Hayward C5520 cartridge filter system. Just noticed a small crack in the lower housing. Actually a few stress cracks but only one is leaking, slightly at this time. I imagine it will get worse soon. Is the lower filter body you show on your site the correct replacement for the 5520 - dex2420at? Let me know. Tony Sherman
 Reply

A  Answered on 2/12/2015 by InyoPools Product Specialist Robert M.

Hello Tony - The correct lower filter body is part number 4811-431.
 Reply


?     Asked on 3/25/2016by Inyo Visitor

would this filter body part fit the c4000cp body part (the bottom half of the filter housing)? Is it the same size?
 Reply

A  Answered on 3/26/2016 by InyoPools Product Specialist Lennox H.

Hi, This Filter Body (DEX2420AT) will not fir the Hayward C-4000 unit.
 Reply


?     Asked on 6/16/2016by howard

will this filter fit exactly with the top filter body and my existing plumbing.. Thanks. Howard
 Reply

A  Answered on 6/16/2016 by InyoPools Product Specialist Patrick P.

Hi Howard, as long as you have a Hayward SwimClear or Pro Grid Filter then yes this would match up exactly with your filter top.
 Reply


?     Asked on 9/6/2016by Scott

Will this bottom be acceptable replacement for Hayward micro clear de 36. Another web site says this will work. Can you confirm. Thanks in advance
 Reply

A  Answered on 9/6/2016 by InyoPools Product Specialist Stacey M.

Hello Scott, This bottom body tank 4811-43 would not fit your Micro Clear 36, I would contact Hayward 800-657-2287 to see if there was a part that replaced it because this part for the bottom body tank is obsolete to better assist you with your search.
 Reply


?     Asked on 10/4/2016by Inyo Visitor

We purchased the original DE filter 4820 in 2002 and recently the base burst. Is the dex2420at compatible since the model year is before 2008?
 Reply

A  Answered on 10/5/2016 by InyoPools Product Specialist Alan M.

Hello- Yes , the Filter Body - Taupe (dex2420at) is the correct replacement base to the DE4820 Hayward filter. Please note that the base does not include any o-rings, clamp, or any other parts. This is just the base and if you need to replace any additional parts, please reference the Hayward Pro Grid Perm-A-Glass DE Parts diagram.
 Reply


?     Asked on 6/17/2017by M. Smith

Will this body fit a Older (1999) 4025 unit? My existing unit uses C-7487 Cartridges. Would this be the right one? Are the threads the same?
 Reply

A  Answered on 6/19/2017 by InyoPools Product Specialist Lennox H.

Hi, M. Smith. This Filter Body - DEX2420AT will fit the Hayward C4025 filter, the port size and threads are the same.
 Reply


?     Asked on 9/7/2017by William Forkner

I have a Hayward C 4000 Cartridge Filter Assembly - it is 20 years old and leaking - I need to replace it but am told it is no longer manufactured- I found the Hayward C5020 on your website and would like to know the price for the entire assembly ready to be plumbed in to my old system- Thank you William L Forkner
 Reply

A  Answered on 9/8/2017 by InyoPools Product Specialist Lennox H.

Hi, William. The Swimclear Cartridge Filter 525 Sq Ft. Filter - C5030 is the current model. 
 Reply


?     Asked on 5/23/2018by Bill Decker

Will this fit my DE4820
 Reply

A  Answered on 5/24/2018 by InyoPools Product Specialist Hector F.

This would be the correct filter body for the Hayward DE4820 filter. 
 Reply


?     Asked on 7/19/2018by Inyo Visitor

Top of the day to you, I currently have a 15 year old C4020 cartridge filter,its still working fine! How long should I expect to get service from this unit and with a 38,000 gal pool/spa which unit should I up grade to - staying with a cartridge filter system . Many TKS Bos'n
 Reply

A  Answered on 7/21/2018 by InyoPools Product Specialist Lennox H.

Hi. The life expectancy of filters can vary depending on how they are maintained. You can use the Swimclear Cartridge - C4030 or C5030 as a upgrade to your model. 
 Reply


?     Asked on 9/30/2018by Danny

Does the replacement part DEX2420 AT come with the internal riser and plug for the body or will I need to replace these. Can I just swap out the filter and reinstall the clamp and inlet/outlet or is there other internal plumbing parts I will need new or switch over?
 Reply

A  Answered on 10/3/2018 by InyoPools Product Specialist Lennox H.

Hi, Danny. No internal parts are included, you will have to reuse those parts. 
 Reply


?     Asked on 5/12/2019by paul

where to plumb the inlet to the tank from the motor. is it the bottom hole or the top one?
 Reply

A  Answered on 5/12/2019 by InyoPools Product Specialist Hector F.

If this tank body is being used on a Swimclear cartridge filter, then the pump is plumbed to the top port.  
 Reply


?     Asked on 5/21/2019by Inyo Visitor

Will this fit with a DE 4820?
 Reply

A  Answered on 5/22/2019 by InyoPools Product Specialist Michelle B.

Hello, Unfortunately, this will not fit your filter.
 Reply


?     Asked on 2/22/2020by Anthony Alan Boerema

I need a Hayward DE7220 filter base replacement. I'm guessing this one won't work, but what is the correct one and does anyone sell them?
 Reply

A  Answered on 2/24/2020 by InyoPools Product Specialist Lennox H.

Hi, Anthony. This Tank Body w/ Clamp - DEX2420ATC will work with the DE7220 model filter. 
 Reply


?     Asked on 2/22/2020by Anthony Alan Boerema

I asked if the DEX2420ATC would fit my DE7220 and I measured the diameter of the bottom (18") and the heights to the pool inlet and outlet. (12.5" and 17.5"). This matches the 4820 dimensions, so I'm hoping the DEnn20 filters all share a common base and only the top varys depending on model. This would make sense from a manufacturing and installation perspective so I'm hoping someone can verify. Here's to hoping!
 Reply

A  Answered on 2/24/2020 by InyoPools Product Specialist Lennox H.

Hi, Anthony. This Tank Body w/ Clamp - DEX2420ATC will work with the DE7220 and all other Hayward ProGrid filter models. The Lid is the difference between the other models.
 Reply


?     Asked on 3/3/2022by John

Hi, I have a Hayward c4020 filter tank assembly. Can I use this tank bottom as an exact replacement. Thanks
 Reply

A  Answered on 3/4/2022 by InyoPools Product Specialist Rich N.

Hi John, yes, the Tank Body w/ Clamp - DEX2420ATC will be a perfect replacement for the bottom of your Hayward SwimClear C4020 filter.  
 Reply


?     Asked on 9/19/2022by Jeanenine Spriggs

de4820 33OF33 Serial # 78363 trying to find a base only
 Reply

A  Answered on 10/11/2022 by InyoPools Product Specialist Hector F.

Hello Jeanenine, the filter body base for your Hayward model de4820 filter is part number 4811-43.  
 Reply