Swimquip 18X17.8 Pool & Spa Replacement Filter Cartridge Comp.
• Swimquip offset port
• Diatomaceous Earth filter grid
• Reinforced center core
• Part number: Swimquip 18X17.8 R / Filbur FC-9890
• Dimensions: 18” x 17.75”
The Swimquip 18X17.8 R Compatible Pool & Spa Filter, also known as the Filbur FC-9890, is a replacement grid spa and pool filter cartridge. This spa filter replaces the Unicel FG-3917.
The compatible Swimquip 18X17.8 is designed to exact OEM standards, so no need for pad filter adapters. This pool filter is suitable for Diatomaceous Earth filter applications. This swimming pool filter’s offset port features a reinforced center core for additional durability. Plus this Swimquip has long lasting welded seams, and filter media which resists fraying, unraveling and won’t react to your pools common chemicals.
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