Hayward Pro-Grid W3DE3620 36 sq ft vertical grid DE pool filterHayward Pro-Grid 36 Sq Ft DE Pool Filter, Valve Not Included, W3DE3620 In stock$1,38900 Web Price
Hayward Pro-Grid W3DE3620 36 sq ft vertical grid DE pool filter
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Hayward Pro-Grid 36 Sq Ft DE Pool Filter, Valve Not Included, W3DE3620

Ask a questionMPN W3DE3620
$1,38900 Web Price Some manufacturers don’t allow us to publicly display their best prices online. When you request an Unadvertised Deal, you’re asking us to unlock a special offer that isn’t shown on the site.
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Quick overview

  • 36 sq ft of DE filtration Vertical grid design, the Hayward Pro-Grid layout.
  • Filters to two to five microns DE traps particles as small as two to five microns on the first pass through the media.
  • The filter cake does the work Grids coat with diatomaceous earth, and it is that cake, not the fabric, that strains out dirt, dust and algae.
  • Backwash or regenerate Clean it by backwashing, or by regenerating and draining the clogged DE to waste, then recharge with fresh DE.
  • Valve not included Buy the multiport or slide valve separately, so you can match the plumbing you already have.
  • Genuine Hayward Factory part W3DE3620, also listed as DE3620.
Full description and specifications ↓

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Product details

The Hayward Pro-Grid DE3620 is a vertical grid diatomaceous earth filter with 36 sq ft of filter area, listed as part W3DE3620. The valve is not included.

How DE filtration works

Diatomaceous earth is a porous powder. Magnified, each grain looks like a tiny sponge, full of microscopic openings. Water passes through those openings but particles as small as two to five microns are trapped on the first pass. Inside the filter, the grids become coated with DE, and it is that filter cake that strains dirt, dust and algae out of the water.

Keeping it clean

Like a sand filter, a DE filter is cleaned when it gets dirty, either by backwashing or by regenerating and draining the clogged DE to the waste line. Filtration is restored by adding a fresh charge of DE, so plan on keeping DE on hand as a running cost.

The valve is a separate purchase, which lets you match a multiport or slide valve to the plumbing already at the pad.

Specifications
Brand Hayward
Manufacturer part number W3DE3620
Also listed as DE3620
UPC 0610377387873
Model Pro-Grid
Type Vertical grid DE filter
Filter area 36 sq ft
Media Diatomaceous earth
Filtration Traps particles as small as two to five microns
Cleaning Backwash, or regenerate and drain to waste, then recharge with fresh DE
Valve Not included
Shipping weight 66 lb
Ships Freight

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Questions and answers

What people ask about this product, answered by our pool techs.

Does this filter come with a valve?
No. The valve is not included, so order the valve that suits your plumbing along with the filter.
How fine does a DE filter actually filter?
DE traps particles as small as two to five microns during the first pass through the media, which is finer than sand or cartridge filtration.
How is a DE filter cleaned?
Either by backwashing, or by regenerating and draining the clogged DE to the waste line. Once the old DE is out, a fresh charge of DE goes back in to restore filtration.
What does the DE actually do?
Diatomaceous earth is a porous powder. It coats the internal grids and forms a filter cake, and that cake is what strains dirt, dust and algae out of the water while clear water passes through.
Ask your own question