White replacement DE filter grid with a plastic connector and a Unicel branded label lying on a plain light surface
Close-up of white fabric and plastic frame showing part of a 24 inch replacement DE filter grid for pool and spa systems

Unicel 24" Replacement DE Filter Grid for 48 sq. ft. Systems | FG-1004

4.3 ★★★★ (115) ▾
Regular price$32.99
/
$9.99 flat shipping on orders under $100.
Unicel Authorized Dealer Full Manufacturer Warranty Support
No Hassle Returns 30 Days Paid Returns
SKU:
FG-1004
  • Poolaroo Promise

    • Fast Shipping — Ships in 1–2 Business Days
    • 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
    • Powered By People Who Care - No Faceless Conglomerate

About This Item

Precision-engineered as a drop-in replacement for 48 sq. ft. DE filter systems, the Unicel FG-1004 is a single full-size grid built to exact OEM dimensional tolerances. Its reinforced construction delivers long-lasting pressure resistance, reliable filtration performance, and a snug manifold fit across a wide range of Hayward, Pentair, Sta-Rite, Jandy, Jacuzzi, Waterway, and Astral filter models.

⚠️ IMPORTANT: CHECK BEFORE YOU BUY
This product is a single (1) replacement DE filter grid — it is NOT a complete set. A full filter service requires multiple grids. Hayward, Pentair, Jandy, Waterway, and Astral 48 sq. ft. systems use 7 full grids (FG-1004) + 1 partial grid (PG-1904). Sta-Rite and Jacuzzi Earthworks 48 systems use 8 full grids (FG-1004) with no partial grid required. Verify your filter model and grid count before ordering.

⚠️ IMPORTANT: Partial Grid Also Required for Some Systems
If your filter uses the 7 full + 1 partial configuration, you will also need the companion partial grid: Unicel PG-1904 Partial DE Filter Grid.

Specifications

Filter System Area 48 sq. ft. (total system)
Grid Length 24" (measured end to end, collar not included)
Grid Width 11"
Collar Configuration Open slot, 2 notches
Material High-grade DE filter fabric with reinforced seaming

Note from Unicel: Collar has open slot (2 notches). Length is measured from one end of the grid to the other (collar not included).

Fits Into:

OEM Brand Filter Model OEM Part Number Grid Configuration
Hayward Micro-Clear DEX4800DA 7 full (FG-1004) + 1 partial (PG-1904)
Hayward Pro-Grid DEX4800DA 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – American Products 5000 Series 59002400 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – American Products Titan CM 59002400 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – American Products Titan RPM 59002400 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – American Products Titan Stainless Steel 59002400 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – Pac Fab FNS Plus 48 59002400 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – Pac Fab FNS 48 (Nautilus FNS Polymeric) 19-2188 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – Pac Fab NS48 (Nautilus) 19-2188 7 full (FG-1004) + 1 partial (PG-1904)
Pentair – Pac Fab NSP-48 (Nautilus Plus) 19-2188 7 full (FG-1004) + 1 partial (PG-1904)
Sta-Rite WC108-4A 8 full grids — no partial required
Jandy (Waterpik) DEL/DEV 48 A0560200 7 full (FG-1004) + 1 partial (PG-1904)
Jacuzzi Earthworks EW 48 42-2970-05-R 8 full grids — no partial required
Waterway Plastics Crystal Water 818-3910 7 full (FG-1004) + 1 partial (PG-1904)
Astral 18046 Clarity DE 7 full (FG-1004) + 1 partial (PG-1904)

(This is not an exhaustive list.)

Pro Tip: Always turn off the pump and release all pressure from the filter tank via the air relief valve before opening the tank to replace grids. When rebuilding, confirm the correct grid count for your specific filter model — 7 full + 1 partial (Hayward, Pentair, Jandy, Waterway, Astral) or 8 full (Sta-Rite, Jacuzzi) — and inspect the manifold o-ring and collar alignment before reassembly. If you need the companion partial grid, see Unicel PG-1904.

Also known as: FG1004

Format: you@example.com

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Unicel Filter Cartridges and DE Grids

About Unicel Filter Cartridges and DE Grids

The "Gold Standard" of Replacement Cartridges
For over 50 years, Unicel (Meissner Mfg.) has been the professional's choice for restoring pool water clarity. While generic "knock-off" filters often use cheap, fuzzy fabric that clogs quickly, Unicel uses genuine Reemay® Filtration Media. This patented synthetic fiber features a unique trilobal shape that traps significantly more dirt and oils without choking your pump's water flow. Based in California, Unicel doesn't just copy filter dimensions; they engineer them to strict Original Equipment Manufacturer (OEM) specifications. This ensures a "lock-tight" fit in your filter tank, preventing debris from bypassing the system and returning to your pool.

Why We Trust Unicel Filter Cartridges and DE Grids
Genuine Reemay® Media: Uses continuous trilobal fibers to capture microscopic debris without restricting water flow.

Precision "Exact Fit": Engineered to match your tank's original specifications for a 100% leak-free seal.

Made in the USA: Manufactured in California with heavy-duty urethane end caps that resist cracking under pressure.

Longer Lifespan: Sharp, rigid pleats resist collapsing during cleaning, meaning you buy fewer replacements over time.

Recently viewed