Stack of white rectangular filter grids with one grid positioned on top, featuring a central circular hole
24 inch circular pool filter grid made of fine mesh material with a central hole and reinforced stitching around edges

Unicel 24" Replacement DE Filter Grid for Anthony Apollo & Flowmaster 4000 | 48 sq. ft. | FG-2417

Regular price$33.99
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SKU:
FG-2417
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About This Item

The Unicel FG-2417 is a single replacement DE filter grid engineered to exact OEM specifications for 48 sq. ft. Anthony DE filter systems. Measuring 24" in length by 17½" in width, this precision-made grid replaces Anthony OEM part number 17565 with the dimensional accuracy your manifold demands for proper seating, seal integrity, and lasting pressure performance.

⚠️ 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 for the Anthony Apollo 4000 / Flowmaster 4000 requires seven (7) of these full grids plus one (1) companion partial grid. Please verify the quantity and type (full or partial) needed for your specific filter model before ordering.

⚠️ IMPORTANT: Partial Grid Also Required for Full Filter Service
The Anthony Apollo 4000 / Flowmaster 4000 requires 7 full grids + 1 partial grid for a complete re-grid. This listing is for the full grid only. Don't forget the companion partial grid — Unicel FG-2413 Partial DE Filter Grid.

⚠️ IMPORTANT: Apollo 5000 / Flowmaster 5000 Owners — This Grid Will NOT Fit Your Filter
The FG-2417 is a 24" grid for 48 sq. ft. (4000 series) systems only. The Anthony Apollo 5000 and Flowmaster 5000 are 60 sq. ft. filters that require 30" grids. Do not order this part for a 5000 series filter.

Specifications

Filter System Area 48 sq. ft. (total system)
Grid Length 24"
Grid Width 17½"
Grid Type Full Grid (Single)
Material High-grade DE filter fabric with reinforced seaming

Fits Into:

OEM Brand Filter Model OEM Part Number Grid Configuration
Anthony Apollo 4000 17565 7 full + 1 partial
Anthony Flowmaster 4000 17565 7 full + 1 partial

(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 inspecting your system, check the tank o-ring and manifold assembly for wear before reassembly. Measure your existing full grid against the FG-2417 specifications (24" length × 17½" width) to confirm fit before installing. Note: If you have an Anthony Apollo 5000 or Flowmaster 5000 (60 sq. ft. system), you will need 30" replacement grids — not this part.

Also known as: FG2417

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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.

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