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Poolzilla

Poolzilla DE Grid Replacement - Replaces DE4800, Unicel FS-2004

Regular price $134.99 USD
Sale price $134.99 USD Regular price
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The Hayward DE4820 and DEX4800DA replacement DE filter grid set delivers 48 square feet of diatomaceous earth filtration across seven full-size grids and one partial grid, compatible with American, Astral, Hayward, Jandy, Pac-Fab, Pentair, and Waterway DE filter systems. This universal grid set (matching Pleatco PFS2448, Unicel FS-2004, and Filbur FC-9540) traps particles down to 5 microns — including pollen, sunscreen oils, and algae spores — for water clarity that cartridge and sand filters can't match. Each grid features heavy-duty polyester fabric over a rigid plastic frame, engineered to hold DE powder evenly across the entire surface for maximum filtration efficiency and longer cycles between cleanings. Replacing all eight grids at once ensures uniform filtration and prevents pressure spikes caused by mixing worn and new media.

Inspect your DE grids every season and replace them every two to three years, or sooner if your pressure gauge climbs 8 to 10 PSI above your clean baseline shortly after backwashing, if you see DE powder returning to the pool, or if the fabric shows tears or sagging. Installation takes about an hour: turn off the pump, open the filter housing, remove the manifold assembly with the old grids attached, swap in your new Poolzilla grid set, reassemble the tank, and recharge with the manufacturer's recommended pounds of DE powder through the skimmer. Order your complete grid replacement set today and restore the crystal-clear filtration your pool deserves.

Check the compatibility table below. If your current filter's part number matches any listed model, this is a direct drop-in replacement.


Product Specs

Product SKU

Replaces OEM

Filter Model

Filtration Area

Length

Outer Diameter

Center Hole

Media

Endcap Material

Pleat Count

Pack Options


Compatibility Table

Brand Part Number Type Status
Poolzilla 02-17-003 OEM-Compatible This Product
Hayward DE4820,DEX4800DA OEM Original OEM
Pleatco PFS2448 Aftermarket Compatible
Filbur FC-9540 Aftermarket Compatible
Unicel FS-2004 Aftermarket Compatible
Other DE4800 OEM-Compatible Compatible

Poolzilla DE Grid Replacement - Replaces DE4800, Unicel FS-2004

$134.99 USD

Verify Your Fit

How to Measure

Confirm all three dimensions match your existing cartridge before ordering.

Length

— top endcap to bottom

Outer Diameter

— widest point across

Center Hole

— inside of the hole

What if it doesn't fit?

We back every order with an exact-fit guarantee. If it doesn't fit your filter housing, contact us within 30 days for a full refund or exchange — no hassle, no restocking fee. Call or text (732) 395-2225.

How long will these last?

With regular cleaning, expect 1–2 seasons of use. Rinse with a garden hose every 4–6 weeks, and do a deep soak in filter cleaner once or twice a season. Replace when you see collapsed pleats, tears in the media, or pressure stays high after a fresh clean.

How do I confirm this fits before I order?

Measure your existing cartridge in three spots: length end-to-end, outer diameter at the widest point, and the inner diameter of the center hole. If all three match the specs listed above, it's a direct fit.