Filbur FC-9890 Pool 18" x 17-3/4" Rectangular DE Grid Filter

DE Filters & Parts
Filbur Manufacturing
FC-9890
14-176-1100
23900-0142, 46454, 4687-03G, FG-3917, SQ-17OS
17-3/4"
18"
StaRite/Pentair
COMPARE AT $41.76
OUR PRICE $33.26
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A rectangular DE grid filter helps form the filtration surface inside a compatible diatomaceous earth filter system, and this Filbur FC-9890 grid is designed in an 18 inch by 17-3/4 inch format for matching pool applications. When the original grid becomes damaged or worn, the filter can lose the dependable debris-capture support it should provide.

The 18 inch by 17-3/4 inch dimensions and FC-9890 reference give this part practical value because DE filter components work best when the replacement matches the intended grid size and filter layout closely. A properly selected grid helps restore intended filtration performance and contributes to cleaner maintenance results.

This type of part is especially useful when the filter assembly remains serviceable and the repair is centered on one worn internal grid. That keeps upkeep focused and efficient.

Installed in the proper setup, this rectangular DE grid helps restore dependable filtration performance and contributes to cleaner overall system operation.

  • Rectangular DE grid filter in an 18 inch by 17-3/4 inch format
  • Helps restore intended filtration-surface support
  • Useful when original grids are damaged or worn
  • Supports cleaner filter maintenance
  • Improves service confidence and system performance
Filbur Manufacturing – Pool & Spa Filter Cartridges and Replacement Filters
Who is Filbur Manufacturing?

Filbur Manufacturing is a leading producer of pool and spa filter cartridges, known for delivering high-quality, OEM-compatible replacement filters. With decades of experience in filtration technology, Filbur supplies cartridges used across a wide range of pool and spa systems. Their products are trusted by homeowners, service professionals, and retailers for maintaining clean, clear, and healthy water.

What products does Filbur Manufacturing specialize in?

Filbur specializes in filter cartridges and replacement filters for pools, spas, and hot tubs. Their product lineup includes pleated filter cartridges designed to capture fine debris, dirt, and contaminants while maintaining proper water flow. Filbur filters are available in multiple sizes and configurations, making them compatible with many leading equipment brands.

Why choose Filbur Manufacturing parts for your pool or spa?

Filbur filters are known for durability, efficient filtration, and consistent performance. Their cartridges are engineered to provide excellent water clarity while extending filter life and reducing maintenance frequency. Pool and spa owners choose Filbur for reliable replacement filters that help protect equipment and maintain optimal water conditions.

How do you identify and choose the correct Filbur Manufacturing part?

To select the correct Filbur filter, it’s important to match your existing cartridge’s length, diameter, and top/bottom configuration. Cross-referencing part numbers or filter model compatibility ensures proper fit and performance. You can use our FILTER FINDER to help you find the proper filter in minutes. Choosing the right filter helps maintain water clarity, improve circulation, and extend system life.

Need help finding the right Filbur Manufacturing part?

At Bath & Spa Parts Online, we carry a wide selection of Filbur Manufacturing pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.

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