Hayward RG450 Regenx Grid - RGX55GE

Part # RGX55GE

By Hayward Pool Products

  4.75 Average  



Part # RGX55GE

Dimensions 9.5" L x 9.5" W x 14" D

Alternate Part #'s 4811-03, 609481, 610377247016, HAY-051-1436, HAY0511414, RG-45-E, RG55GE, RGX45GE, 14-150-1206, HAYRGX55GE

Product Description

Pleated 45 sq. ft. replacement grid for the Hayward RG450 Regen-X DE filter.  This is a high quality OEM grid made by Hayward.

Product Specifications

14 in.
9 - 9/16 in.
Top Hole:
3 in.
Bottom Hole:
3 in.
Filter Model:
Hayward ReGenX 450
Filtration Area:
45 sq. ft.
Top Inside Diameter:
Bottom Inside Diameter:

?     Asked on 10/3/2020by SALVATORE COTTONE

will this ever become available again, I need filter and o ring

A  Answered on 2/5/2021 by InyoPools Product Specialist Hector F.

Hello Salvatore, unfortunately, this filter element is no longer manufactured with no replacement. Please see this Hayward Regen-X D.E. Filters parts diagram to view the o ring options on key #4. 

?     Asked on 7/2/2020by carol jordan

We have a Hayward Regenx pool filter DE RG45e that needs replacement. I see you have one in your inventory, but doesn't state the price or availability. If we cannot get the exact filter, what is the next best one? Thank you

A  Answered on 7/7/2020 by InyoPools Product Specialist Lennox H.

Hi, Carol. Unfortunately, this item is no longer available and there is no alternate replacement. You will have to locate one at another retailer or replace your entire filter. 

?     Asked on 6/12/2019by YVONNE JAMES

when starting new grid filter how much DE is needed for the regenx rg 450

A  Answered on 6/12/2019 by InyoPools Product Specialist Megan C.

The recommended amount of Diatomite (D.E.) is 2 pounds.

A  Answered on 7/30/2020 by Product Owner

You can no longer get the cartridge for the de filter. It requires 2 lbs. of de added through the skimmer while running.

?     Asked on 8/24/2018by Inyo Visitor

Flow blocked removed grid water flows normal how do I clean grid?

A  Answered on 8/24/2018 by InyoPools Product Specialist Lennox H.

Hi. Cleaning instructions are available in the Hayward Regen-X Filter Manual

?     Asked on 5/15/2017by John

I want to purchase a grid element. The grid from my filter has an item number of RG55E and measures 9 5/8 x 14 1/4. Is the RG450 the same filter? If not, please let me know the correct item number. I appreciate the help. Thanks-John

A  Answered on 5/15/2017 by InyoPools Product Specialist Patrick P.

Yes this is the correct replacement grid for your Regenx RG55E

?     Asked on 8/17/2016by Kathy

Is this filter grid the same as the RGX45GE?

A  Answered on 8/18/2016 by InyoPools Product Specialist Lennox H.

Hi Kathy, Yes, the RG450 is the replacement for the RGX45GE filter.

?     Asked on 5/23/2016by Bruce Hendershot

Do I need to use de powder with this filter? The filter is only 2 years old and the de blows back into the pool during start up making the water cloudy. I read that a cartridge filter does not need de to filter out particles etc.

A  Answered on 5/23/2016 by InyoPools Product Specialist Patrick P.

Hi Bruce the Regenx filter is a unique cartridge filter that also uses DE this is the only filter that has a cartridge and uses DE. So if you don't have the Regenx filter then you do not add DE to a cartridge filter. By the way the Regenx was discontinued roughly 15 years ago so if your filter is 2 years old then most likely it does not use DE powder.

?     Asked on 8/9/2015by Walter

Dose this grid fit the Hayward serial #340h29 regenx

A  Answered on 8/12/2015 by InyoPools Product Specialist Lennox H.

Hi Walter, You would have to call Hayward Tech Support at 908.355.7995, their the only ones that can tell you which replacement cartridge you need from the serial number. You can also find out which cartridge you by measuring the current cartridge and comparing it to the RG450 Regenx Grid and the RG700 and SC700 Regenx Grid.

?     Asked on 7/11/2015by kim serrano

I was wondering how do you know if you need a new grid? Mine is about ten yrs old. The problem i'm having is on start up its blowing DE back into the pool what can cause this because other than the grid and the o ring on the lid their is noting to this filter.

A  Answered on 7/12/2015 by InyoPools Product Specialist Patrick P.

Hi Kim, it would definitely be time for a new grid, normally we see the life span being 3 years or so. To determine when it is time to replace your DE grid you will want to note your initial clean starting PSI from your pressure gauge, when you install your new clean DE grid. You will know it is time to replace your grid when after you clean your grid the pressure does not drop below 10 PSI above your initial clean starting PSI. For example if the initial clean pressure reading is 10 PSI and 3 years from now you clean your grid and it does not drop below 20 PSI then it is time to replace your grid. Another tell tale sign that the grid needs to be replaced is when DE is returning back to your pool.

?     Asked on 7/5/2015by Rick

Do you carry a generic filter for Hayward filter RG 450.OEM # RGX55GE.Price?

A  Answered on 7/8/2015 by InyoPools Product Specialist Lennox H.

Hi Rick, We do not carry a generic replacement filter for the Hayward RGX55GE Cartridge.

?     Asked on 6/23/2015by Sara

Does this work with RG550?

A  Answered on 6/24/2015 by InyoPools Product Specialist Lennox H.

Hi Sara, The Hayward RG450 Regenx Grid (RGX55GE) does work with the RG550.

?     Asked on 6/29/2009by Guest

Is this the replacement cartridge for the RG55?

A  Answered on 6/29/2009 by InyoPools Product Specialist Patrick P.

Yes this is the replacement cartridge for the RG55.


Est. Repair Time

Less than 1 hr

Tools Needed


0     1

DE was blowing back into the pool after cleaning

Written on 8/20/2018 by Guest

Ordered a new Hayward grid, cartridge for filter.Cleaned filter. Put in new cartridge. Swept up DE in pool. Cleaned filter. Added new DE. Pool is good to go.

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