![Darlly Spa/Pool Replacement Filter Cartridge [40453] [FC-2660] (C-4345) Spa Filters: Replacement Cartridges - Filbur 4" Outside Diameter Cartridge 40453](http://bathparts.com/cdn/shop/files/40453.jpg?v=1757107382&width=1600)
![Darlly Spa/Pool Replacement Filter Cartridge [40453] [FC-2660] (C-4345) Spa Filters: Replacement Cartridges - Filbur 4" Outside Diameter Cartridge c-4345](http://bathparts.com/cdn/shop/products/c-4345.jpg?v=1752185210&width=700)
![Darlly Spa/Pool Replacement Filter Cartridge [40453] [FC-2660] (C-4345) Spa Filters: Replacement Cartridges - Filbur 4" Outside Diameter Cartridge 40453](http://bathparts.com/cdn/shop/files/40453_1024x.jpg?v=1757107382)
![Darlly Spa/Pool Replacement Filter Cartridge [40453] [FC-2660] (C-4345) Spa Filters: Replacement Cartridges - Filbur 4" Outside Diameter Cartridge c-4345](http://bathparts.com/cdn/shop/products/c-4345_1024x.jpg?v=1752185210)
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Darlly Filter replaces the Filbur FC-2660 (C-4345)
| Application | Martec/Sonfarrel, Santana, Sonfarrel/Advantage |
| Bottom Physical Dimension | 2-1/8" |
| Bottom Style | Open |
| Diameter | 4-15/16" |
| Length | 14-7/8" |
| Media Type | 3oz |
| Square Footage | 45 sq ft |
| Top Style | Closed |