D.E. Filter Grids

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Achieve the Clearest Water with D.E. Filter Grids

When it comes to superior pool water clarity, nothing beats the performance of a Diatomaceous Earth (D.E.) filter. At the heart of every D.E. filter system are the grids — durable fabric panels that hold the fine D.E. powder responsible for capturing the smallest dirt and debris particles. Over time, these grids wear out, tear, or become stained, reducing filtration efficiency. That’s why replacing your D.E. filter grids regularly is critical for keeping your water sparkling clear.

At Benchmark Pool Supply, we offer top-quality D.E. filter grids for major brands like Pentair® FNS Plus and Hayward® Pro-Grid systems. Whether you need a full set, a partial replacement, or a single damaged grid, our collection ensures you’ll find exactly what your filter requires.

Keep water crystal-clear by pairing D.E. grids with Pool Filters, Filter Cartridges, and Filter Parts.

Why D.E. Filter Grids Matter

  • Superior Filtration – Capture particles as small as 2–5 microns.

  • Cleaner, Safer Water – Removes algae spores, oils, and fine debris.

  • Efficient Operation – Maintains proper flow and pressure.

  • Extended Filter Life – Keeps tanks, manifolds, and plumbing in better condition.

  • Professional-Level Results – Preferred by commercial pools and service pros.

Types of D.E. Filter Grids

1. Full Grids

  • Large panels that make up the majority of the filter assembly.

  • Typically measure 24", 36", 48", or 60" depending on your filter size.

2. Partial (Small) Grids

  • One smaller grid included in each set to complete the assembly.

  • Works alongside full grids to balance flow.

3. Complete Grid Sets

  • Include 7 full grids and 1 partial grid.

  • Ideal for complete replacement during seasonal maintenance.

4. High-Quality Aftermarket Options

  • Affordable alternatives to OEM grids.

  • Constructed with durable fabric for long service life.

Signs It’s Time to Replace Your D.E. Grids

  • Visible tears or holes in the fabric.

  • Persistent cloudy water even after backwashing and recharging with D.E. powder.

  • Excessive filter pressure that won’t normalize after cleaning.

  • D.E. powder blowing back into the pool through returns.

  • Grids appear brittle, stained, or collapsed.

Maintenance Tips for D.E. Grids

  • Backwash Regularly – Follow manufacturer guidelines to prevent buildup.

  • Recharge with Fresh D.E. Powder – Add the correct amount after each backwash.

  • Deep Clean Annually – Remove grids and soak in a filter cleaner solution.

  • Inspect Each Grid – Check for tears, wear, or frayed fabric.

  • Replace as Needed – Grids typically last 3–5 years with proper care.

Compatible Systems

Our D.E. filter grids fit popular systems, including:

  • Pentair® – FNS Plus®, Quad DE®, and Nautilus Plus®.

  • Hayward® – Pro-Grid® DE Filters.

  • Sta-Rite® – System 3 DE Filters.

  • American Products® – Titan and Titan CM.

Why Buy D.E. Filter Grids from Benchmark Pool Supply?

  • Top-Quality Products – OEM and high-quality aftermarket options available.

  • Wide Selection – Full grids, partial grids, and complete sets.

  • Expert Support – Our team helps you choose the right size and model.

  • Affordable Pricing – Competitive rates for essential maintenance parts.

  • Fast Nationwide Shipping – Get your grids quickly to restore water clarity.

✅ FAQ – D.E. Filter Grids

Q: How often should I replace my D.E. filter grids?
A: On average, every 3–5 years. Heavy use or poor maintenance can shorten their lifespan.

Q: Do I need to replace all grids at once?
A: Not always. If only one grid is damaged, you can replace it individually. However, for older sets, replacing the full set is recommended.

Q: Can I use my filter without D.E. powder?
A: No. D.E. powder is essential for filtration. Grids hold the powder but don’t filter alone.

Q: Are aftermarket D.E. grids as good as OEM?
A: High-quality aftermarket grids often perform just as well at a lower cost.

Q: How do I know what size grid I need?
A: Measure the length of your existing grids or check your filter’s model number.

Q: Why is D.E. powder returning to my pool?
A: This usually means a torn grid, cracked manifold, or damaged standpipe O-ring.