Besides variety of common pool and spa filter cartridges, ProLine also provides special and new products to bring you a better experience when using your pool and spa filtration systems. Designed as direct replacements for manufacturers original cartridges, there are no adapter plates needed. Simply pull out the old filter and replace. All ProLine products are fully in accordance with international standards and high quality.
| Application |
Pac Fab / Pentair, Waterway |
| Bottom Physical Dimension |
3" |
| Bottom Style |
Open |
| Diameter |
7" |
| Length |
26-1/16" |
| Media Type |
4oz |
| Model |
Clean & Clear Plus 420 (After 11/98) |
| Square Footage |
105 sq ft |
| Top Physical Dimension |
3" |
| Top Style |
Open |
![Unicel Spa/Pool Replacement Filter Cartridge [FC-1977] Spa Filters: Replacement Cartridges - Filbur 7" Outside Diameter Cartridge FC-1977](http://bathparts.com/cdn/shop/products/FC-1977.jpg?v=1769976164&width=1600)
![Unicel Spa/Pool Replacement Filter Cartridge [FC-1977] Spa Filters: Replacement Cartridges - Filbur 7" Outside Diameter Cartridge FC-1977](http://bathparts.com/cdn/shop/products/FC-1977_1024x.jpg?v=1769976164)