Meet the Filbur Rectangular Diatomaceous Earth Grid FC-9845 — a purpose-built DE grid designed for 18" x 16-1/2" center-port filter housings. Engineered to slot in cleanly and perform consistently, this Filbur component helps you maintain crystal-clear water with fewer headaches and longer filter life.
- Sturdy extruded PVC center-cores provide even stress distribution and support when filtering heavy debris, reducing the risk of grid bowing and extending service intervals.
- End caps with integrated fittings enable quick, tool-free installation and removal, preserving optimal flow paths without the need for aftermarket adapters.
- Rugged frame construction and reinforced bands keep grid spacing stable, minimizing flutter and ensuring reliable filtration even under high-flow conditions.
- Designed to resist the harsh environments of salt pools and high-chlorine systems, helping maintain performance and longevity over time.
- Em embossed part numbers and a precise rectangular profile make identification and replacement easy, so you can reorder with confidence when maintenance is due.
Why choose Filbur FC-9845? Filbur is a trusted OEM-quality brand in the U.S., known for components that stand up to the demands of real-world pool and spa use. This DE grid is built to deliver sustained filtration efficiency, helping your DE system capture fine particulates more effectively and reduce maintenance frequency compared with generic grids.
Use cases and scenarios
- Residential in-ground pools equipped with rectangular DE grid systems seeking reliable, long-lasting filtration components.
- Spa and hot tub setups where stable grid performance supports consistent water clarity and chemical efficiency.
- Saltwater pools and chlorine-heavy environments where materials must resist deterioration while maintaining filtration integrity.
Practical tips for optimal performance
- Inspect the grid for cracks or warping before installation; replace any damaged units to avoid bypass and uneven filtration.
- Align the FC-9845 correctly with the housing to ensure integrated fittings seat properly and flow remains unobstructed.
- When replacing multiple grids, consider swapping the entire set to maintain uniform filtration across the bed.
- Rinse lightly to remove any manufacturing residue prior to first use, then run the system to verify even distribution and flow.
Upgrade your DE filtration with the Filbur FC-9845 and enjoy dependable performance, easier maintenance, and water that looks and feels inviting. Clearer water is within reach when you pair your system with Filbur’s durable, purpose-built DE grids.
