Part # DE4820
Warranty 1 Year Warranty
Hayward Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleaning capacity for pools and spas of all types and sizes. Constructed with high-strength reinforced thermoplastic, Pro-Grid combines high-technology features and "service-ease" design for an unparalleled filtration value for both new pool and aftermarket installations.
In addition, the Hayward Pro-Grid filter delivers low maintenance and dependable operation.
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Hello, I would like to get a Hayward DE4820 to replace an FNS Plus. My FNS plus makes me itch like crazy because it has become bare fiberglass. Will the Hayward do the same thing? If I buy the hayward 6 way multi valve with it, will I need Bulkhead fittings to purchase as well? Will the Hayward bolt up to my current Pentair Multi valve setup I am using for the FNS Plus?
Hi, Les. This filter is made of a glass-reinforced copolymer which will not be as bad as the FNS Plus. You will not have to purchase additional bulkheads. It will not connect to your existing Pentair MPV.
I am replacing an old de4820 with the newer model de4820 are the two pipe connections at the same height as the old model.
Hi, Dave. Yes, the old and new DE4820 has the same plumbing connection height.
I have a 22x41 x 52" deep Doughboy above ground pool. It is recessed and has a deck surrounding the entire top and all sides are enclosed. Will the model DE4820 filter work on my pool. I have a new Hayward 1.5 hp matrix pump and am using a Hayward sand filter currently. Not getting great filtering due to no main drain and surrounding trees with polin, dust and other airborne dirt. Have to Floc every 3 weeks. I figure i have roughly 30,000 gallons. Looking forward to your suggestions
Hi Jerry, I believe you posted an earlier question about the Perflex EC50AC and I do like this Pro Grid Filter better than the EC50AC for a few reasons. The first reason is that the DE grids on the DE4820 are much less expensive to replace at approximately $125 for the Pack of 8 DE Grids vs. roughly $350 for the Perflex Replacement DE Fingers. Second... the DE4820 gives you about twice the filtering capacity as the EC50AC. If you go with the DE4820 you will also need this Hayward DE4820 Pro Grid Backwash Valve.
I can find replacement DE 4800 assemblies online for the same price as the 4820. I understand they're interchangeable but is there any reason I'd want to get a 4820 rather than a 4800?
We have always used this Hayward 48 Sq. Ft. DE Grid Cluster for both the DE4800 and the DE4820 and we have never had any issues.
I have a 20x40 inground pool. My pump is 2 hp with 2" piping. Will the Hayward DE4820 be the right pool filter to purchase? Thank you for all your help. Your website is the best website to visit with pool questions and do-it-yourself videos. Your are the best!
Hi June, Thanks so much for the nice compliment! The DE4820 would work fine for your 2 HP pump but if your pocketbook can afford it I would suggest the Hayward DE6020 60 Sq. Ft. filter as it has a larger filtering capacity. The larger filter capacity means more time between cleaning your DE grids, also the larger filter puts less stress on your pump allowing for a longer life on your pump.
Hello. Would like to obtain a replacement hold down ring for the filter shell, which holds the top of the filter shell to the bottom. Can you provide me a part number for the Hayward model DE4800 Serial 330L30?
Hello, Ken. The Clamp with Spring Assembly is an Obsolete item, it is no longer manufactured. The Hayward Pro Grid DE Filter 48 Sq Ft w/o Valve - DE4820 is the replacement filter.
I currently have a mirco-clear DE6000 that just let go. Will the De4820 be a suitable replacement? My pool is a 18 by 36 rectangle. Also, is the size similar or do I need to adjust the pipes coming out of the ground?
Hello, Based on the dimensions and assumed depth of your pool, the Hayward Pro Grid DE Filter 48 Sq Ft w/o Valve will accommodate your size pool. The valve size should be the same, but the height may be different. There is a possibility you would need to do some minor replumbing of your existing piping.
IVE POURED SOME DE DIRECTLY INTO THE POOL RATHER THAN THE SKIMER I POURED THE OTHER HALF INTO SKIMMER IS ALL OK?
Dominic, If you brush the product towards the main drain, the filter should be able to remove it from the pool.
I have a de4800 filter, will the de4820 body clamp fit the de4800
Yes sir, the de4820 clamp will fit.
I have a de4800 filter I want to get the newer model de4820 it is a direct fit replacement Can I run two filters in parallel adding the 4820 with my 4800 I want to by the pentair 1.5 variable speed motor to run the system Will this work
Hi Mark, The DE4820 is a direct replacement for the DE4800.You can install the two filters parallel, however, you will need to install a diverter valve where the filter tee off so that you'll be able backwash the filters separately.
Does the body clamp on the newer model de4820 fit the older model de4800
Mark, The newer style clamp will not fit the older style body.
We currently have a Hayward Perflex EC75A would the Pro Grid 4820 be a suitable upgrade for this size DE filter. Also I assume we will need to purchase a multiport valve as well, is this correct?
Hi Karen, Yes the DE4820 would be the appropriate upgrade for an EC75A and you would need this Multiport Valve I like the DE4820 Pro Grid Filter over the Perflex EC75A because when you replace the grids on the Pro Grid they are about $125 where replacing all the fingers on the Perflex can be in the neighborhood of $575
I have a de4800 and need a new top lid for it. Where can I get one. Nobody seems to carry it anymore.
Hi, Unfortunately, the manufacturer no longer make the Top for the DE4800 filters, so you will have to replace the entire filter. The DE4820 will be a suitable replacement.
Hi, I have a Haywood 4800 And need a DEX2400C replacement part . Where can I find this ?
What else do I need to buy to install the Hayward DE4820 ProGrid 48 Square-Foot Vertical Grid DE Pool Filter. Please be specific.
I have a DE4800 and understand that the 4820 is the replacement. Will my multiport valve which fits the DE4800 fit onto the 4820? Can any of my Grids from the DE-4800 be used in the 4820 (now I would have a complete spare bundle)?? What other components might be interchangeable or useable?
I have an 18x36 rectangle inground 3ft to 8ft deep, I currently have a DE filter Nautilus PacFab NS36, is this a good replacement or overkill? My pump is a 1.5hp superpump with 1.5" plumbing.
Based on the model pump and surface area of your pool, this filter is a good recommendation for your application.
I have a Hayward Micro Clear model DE 4800 - will this 4820 model replace it?
Yes the Hayward DE4820 Pro Grid DE Filter is the direct replacement for the Hayward Micro Clear model DE 4800.
YOUR DE4820 APPEARS LARGER THAN WHAT I AM REPLACEING WHAT IS THE SIZE SO I CAN MAKE SURE
Hello Fran, Measurements for this unit are 41 inches High, 23 inches wide
I am getting DE back into my pool after I backwash, do you know why?
The main reason is that one or more of your grids are torn and DE is passing through. Please remove all the grids and thoroughly inspect each for rips or cracks in the plastic structure. Also check the manifold ( the piece the grids fit into ) for cracks in the plastic. If there is nothing wrong with either of those, one other possibility is that the spider gasket in the multi-port valve may be torn and not sealing correctly.
How much D.E. powder does this Hayward de4820 filter use?
This filter model uses approximately 8 lbs. of D.E. powder when completely empty and approximately 4 lbs. of D.E. after backwashing.
How do I backwash my Hayward Vertical Grid DE filter?
When the filter pressure rises 8-10 PSI over the clean starting pressure, the filter must be backwashed. Turn off the pool pump. Rotate the multiport valve to backwash position or slide the slide valve up. When the pump is turned on, the dirty DE and water will flow out to waste. Once the water runs clear, turn off the pump. With a slide valve, push the handle down and start the pump. Once the pump is primed, add the required DE. If using a multiport valve, rotate the handle to rinse. Turn on the pump and let water flow for 20-30 seconds, cleaning out the plumbing lines. Turn off the pump and rotate the valve back to filter. Turn on the pump and once primed add required DE.
(5 out of 5 stars) DE pool filter par excellence
Reviewed By: coolblue from Winter Springs, FL ()
I recently purchased a Hayward DE-3620 filter as a replacement for a 10-yr old Hayward DE-3600, and was initially most satisfied with the ability to directly install the new unit in place of the old one without having to make any adjustments whatsoever to the interface connections with the existing vari-flow valve and external piping. Upon first use, I found welcome improvements had been made to the ease of operating the air relief valve and to the pressure gage with a simple means for indicating changes in pressure from the initial setting and when filter cleaning is required. Having just encountered a particularly heavy accumulation of oak pollen and blosom debris that indicated a need to manually clean the filter elements (rather than the more usual backwash routine) I was most impressed with Hayward's changes to the design of the clamp ring and the relative ease and speed with which the top shell and the internal filter elements could be removed. I am pleased to see that Hayward has continued to improve their already great DE filter product line.
(5 out of 5 stars) DE Filter
Reviewed By: Edward S. from Philadlephia Pa. ()
Pros: Easy to install. piping same dimension from ground as compared to previous generation hayward DE filter allowing for easy retrofit
Filter easy to install and works great. Not sure why it is paired with a 1 1/2 HP pump that only has 1 1/2 connections when the filter and valve are all 2" Would think for volume all piping should be the same diameter
(5 out of 5 stars) Great Swiming pool cleaner
Reviewed By: Robert C. from Taylor, TX ()
Pros: filters water very clearly
Cons: could arrive a bit sooner
this pool filter is the 2nd one that I have used for our pool. it cleans our pool crystal clean and i highly recomment this filter.
(5 out of 5 stars) Much better than old style
Reviewed By: Shawn F. from Jay, ME ()
Pros: Ease of cleaning
Cons: None thus far
Had an old style DE filter and took forever to remove all the bolts so I could clean out the "junk" inside and get the filter moving again. I live in the northeast and with all the leaves and algae it gets clogged in the spring when we open and it was a pain. This new filter is soo much easier.