
Unicel FS-2003 36 Sq Ft DE Filter Grid Set – 8-Piece
Restore Peak Performance to Your DE Filter
For pool owners who demand the clearest, cleanest water possible, a properly functioning DE filter is essential. The Unicel FS-2003 36 Sq Ft DE Filter Grid Set – 8-Piece is a complete OEM-quality replacement grid set designed to restore your filter to factory performance. Built with precision-fit frames and durable Reemay® filtration fabric, this kit ensures maximum debris capture and long-lasting reliability.
Instead of replacing grids one at a time, investing in the complete FS-2003 set ensures balanced performance across your entire filter, helping you avoid cloudy water, poor circulation, and uneven wear.
Why Choose Unicel DE Filter Grids?
Unicel is the leading name in replacement pool filter elements, trusted by professionals and homeowners alike. Their FS series grids are engineered to match OEM specifications exactly, meaning you get:
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Perfect Fit: No gaps, misalignments, or wasted filtration area
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Durable Materials: High-quality Reemay® spunbond polyester media resists tearing and chemical damage
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Consistent Water Clarity: Traps particles down to 2–5 microns for sparkling clear water
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Proven Longevity: Frames and fabrics designed to withstand years of backwashing and cleaning cycles
With Unicel, you’re not just replacing filter parts—you’re upgrading your water clarity.
What’s Included in the FS-2003 Set?
This complete 8-piece replacement grid set includes:
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7 Full Grids – For maximum filtration coverage
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1 Partial Grid – To complete the 36 sq. ft. grid assembly
Together, these grids provide a total of 36 square feet of DE filtration area, designed for balanced flow and top-to-bottom cleaning.
Key Features & Benefits
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OEM-Grade Replacement – Matches the original manufacturer’s dimensions and specs
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Premium Reemay® Fabric – Industry-standard media that provides superior filtration
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Durable Frame Design – Rigid and chemical-resistant for long-term reliability
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Balanced Water Flow – Complete set ensures even performance across all grids
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Easy Installation – Fits directly into compatible DE filter manifolds
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Clearer, Healthier Water – Removes microscopic particles other filters miss
Compatible Filter Models
The Unicel FS-2003 grid set fits many popular 36 sq. ft. DE filters, including:
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Hayward Pro-Grid & Micro-Clear DE filters (36 sq. ft.)
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Pac-Fab DE filters
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American Products DE filters
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Other brands/models that use standard 36 sq. ft. DE grid sets
⚠️ Always check your filter’s model number and grid size before ordering to ensure compatibility.
When to Replace DE Grids
Even with regular maintenance, DE filter grids eventually wear out. Common signs you need a new set include:
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Frayed or torn filter fabric
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DE powder leaking back into the pool
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Reduced water flow despite a clean filter
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Uneven water clarity after backwashing
If your grids show any of these symptoms—or if they’re more than 5–7 years old—it’s time for a complete set replacement.
Installation Guide
Installing the FS-2003 grid set is straightforward:
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Turn Off System Power – Always shut off the pump before servicing the filter.
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Relieve Pressure – Open the air relief valve on your filter.
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Remove Filter Top – Access the grid assembly inside.
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Disconnect Manifold – Remove the old grid set.
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Rinse & Clean – Wash inside the tank before installing new grids.
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Install New FS-2003 Set – Attach grids to the manifold, ensuring proper alignment.
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Reassemble Filter – Reinstall the top, recharge with DE powder, and restart the system.
Long-Term Value
At $135.95, the Unicel FS-2003 grid set delivers outstanding value compared to cloudy water, inefficient filtration, and premature filter damage. Benefits include:
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Crystal-clear water by capturing particles as small as 2 microns
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Extended filter life with OEM-grade construction
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Even flow distribution thanks to all-new matched grids
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Lower maintenance costs by avoiding piecemeal replacements
Your pool deserves professional-level filtration—Unicel delivers exactly that.
Product Specifications
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Manufacturer: Unicel
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Model: FS-2003
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Type: DE Filter Grid Set (8-piece)
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Filtration Area: 36 sq. ft.
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Material: Reemay® spunbond polyester
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Includes: 7 full grids + 1 partial grid
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Applications: DE pool filters (Hayward, Pac-Fab, American Products, and others)
Why Buy from Benchmark Pool Supply?
At Benchmark Pool Supply, we stock genuine Unicel filters and other top-tier replacement parts. Pool owners and professionals choose us for:
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Fast shipping across the U.S.
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Competitive pricing on premium pool parts
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Expert support to help you find the right fit
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Trusted brands like Unicel, Pentair, Hayward, and more
We make it easy to keep your pool sparkling clear with dependable replacement parts.
FAQs About the Unicel FS-2003 Grid Set
Q: How often should I replace DE filter grids?
A: Typically every 5–7 years, or sooner if you see tears, fraying, or DE powder leaking into the pool.
Q: Do I need to replace all 8 grids at once?
A: Yes, replacing the full set ensures even water flow and balanced filtration. Mixing old and new grids can reduce performance.
Q: Can I install this set myself?
A: Yes. If you’re comfortable servicing your DE filter, you can install it in under an hour. Otherwise, hire a pool technician.
Q: What makes Reemay® fabric better?
A: Reemay® is the industry standard for filter media—it’s durable, chemical-resistant, and traps fine debris more effectively than generic fabrics.
Q: Is DE powder included with the set?
A: No. DE filter powder must be purchased separately to recharge the filter after installation.