/
Description
Introducing the Filbur Rectangular Diatomaceous Earth (DE) Grid, FC-9850—an OEM-grade replacement grid designed to maximize clarity and filtration efficiency in your 18" x 19-1/4" rectangular DE filters with a center port. Built by Filbur, a trusted name in pool and spa filtration, this grid blends rugged durability with precise filtration performance to keep your water sparkling and easier to maintain.
What makes this DE grid unique
- Reinforced extruded PVC center core with round holes for even stress distribution, reducing the risk of grid cracking under heavy loading and helping you achieve longer service intervals between cleanings.
- Antimicrobial end caps—reinforced for strength and treated to repel odor-causing bacteria and mold—designed to withstand salt pools and high levels of chlorine.
- Wider support bands to keep pleats evenly spaced, prevent flutter from turbulence, and maintain optimum flow across the grid for consistent filtration results.
- Premium construction using robust materials that resist deterioration in saltwater environments and chlorine-rich pools, extending life and reducing replacement frequency.
- End caps with integrated fittings for straightforward installation and removal, minimizing flow restrictions and improving overall filtration performance.
- Embossed part numbers for quick identification and hassle-free reordering when you need a replacement grid.
Why you’ll love it
- Designed to complement your DE filtration system, delivering deep dirt penetration while preventing bridging, so more particles are captured and held within the grid structure.
- Better debris loading and pressure tolerance mean fewer surprises during filter maintenance and more consistent water clarity over time.
- OEM-grade reliability—Filbur’s focus on value and durability makes this grid a dependable choice for pool and spa owners who demand long-lasting performance.
Ideal for
- Homeowners maintaining saltwater or chlorine-heavy pools who want durable, long-lasting DE grid replacements.
- Pools and spas using rectangular DE filter housings that require center-port grids with precise dimensions.
- Anyone seeking easier installation, clearer water, and less frequent grid replacements without compromising filtration quality.
Practical tips for best results
- Inspect the grid for damage or warping during each routine maintenance and replace if center core shows signs of stress or cracked ends.
- Rinse the grid with a garden hose between cleanings to remove trapped debris and maintain peak flow through the pleats.
- When reassembling, ensure the end caps and fittings are securely seated to avoid air leaks and ensure even flow across the grid.
Upgrade your DE filtration with the Filbur FC-9850 Rectangular DE Grid and experience enhanced filtration efficiency, easier servicing, and long-lasting durability built to meet the demands of modern pools and spas.