Unicel 12" Filter Grid for Astral/Pac Fab/American/Hayward | PG-1902

Unicel PG-1902 D.E. Filter Grid Replacement (Vertical Grid Style)

The Unicel PG-1902 is a replacement diatomaceous earth (D.E.) filter grid used in select vertical-grid D.E. pool filters. D.E. grids are the primary filtration media inside the filter tank—capturing very fine debris when properly charged with D.E. powder. Replacing a worn or torn grid helps restore water clarity and helps prevent D.E. powder from returning to the pool.

Key Features

• Replacement D.E. filter grid (vertical grid style)
• Helps restore fine-particle filtration when used with the correct D.E. charge
• Common service replacement when a grid is torn, frayed, split, or brittle
• Designed for repeated cleaning cycles and seasonal maintenance

Compatibility Notes

• Used in select vertical-grid D.E. filters that specify Unicel PG-1902 as the replacement grid.
• Best practice: match by part number and compare your existing grid’s length, top/bottom opening, and whether it is a full or partial grid.
• If you’re replacing one damaged grid, consider inspecting the full grid set—multiple grids often wear at the same pace.

Common Signs You Need a New Grid

• D.E. powder returning to the pool through the return jets
• Visible tears, seam separation, or fabric thinning
• Cloudy water or short filter cycles even after cleaning and recharging with D.E.
• Debris bypass after confirming the manifold/standpipe seals are intact

Installation Notes

• Shut off power and relieve filter pressure at the air relief before opening the tank.
• Inspect the manifold, standpipe o-ring, and air relief components while the filter is open.
• After reassembly, recharge with the correct amount of D.E. for your specific filter model.

Related Products

• Unicel PG-1902 (Search Results)
• D.E. Filter Grids (Other Sizes)
• D.E. Filter Manifolds
• D.E. Filter Tank O-Rings
• D.E. Pool Filter Powder
• D.E. Filter Cleaner

Maintenance Tips

• Clean/backwash when pressure rises about 8–10 PSI above your clean starting pressure.
• Open and inspect grids at least once per season—small tears can quickly become major bypass issues.
• Rinse grids thoroughly and avoid stiff brushes that can damage the fabric.
• Balanced water chemistry helps reduce scale and extends grid life.