Part reference
Unicel C-7470
The Unicel C-7470 is a replacement pool filter cartridge for the Pentair Clean & Clear Plus 320 filter system.
The C-7470 is Unicel's part number for the cartridge that fits the CCP320. If you pulled a cartridge with C-7470 printed on the end cap, or a parts list pointed you here, the specs and cross-reference below let you confirm the match before you order.
Specifications
| Length | 20 1/16 in |
|---|---|
| Outer diameter | 7 in |
| Top opening | 3 in |
| Bottom opening | 3 in |
| Filtration area | 80 sq ft |
| Media | 4 oz polyester |
How to verify this is the right cartridge
Start with the end cap. Unicel prints C-7470 directly on the cap. If your old cartridge reads C-7470, this replaces it one for one, no measuring needed.
If the printing has worn off, measure. Three dimensions settle it: overall length, outer diameter across the pleats, and the diameter of the center hole at each end. The C-7470 is 20 1/16 inches long, 7 inches across, with a 3 inch opening top and bottom. Match all three and you have the right cartridge.
The dimension people get wrong is the opening. The 7 inch figure is the full width across the outside of the pleats. The 3 inch figure is the hole in the center of the end cap. Reading one for the other is the most common reason a cartridge shows up not fitting.
How many cartridges does my filter take
The Pentair Clean & Clear Plus 320 uses four cartridges per system. They sit together in one housing and share the load, so the standard replacement is a full set of four rather than a single. That is why the C-7470 is most often bought as a four-pack.
Replacing only some of the four leaves new cartridges carrying uneven load against worn ones, which shortens the life of the new set.
Cross-reference
The same cartridge is sold under different part numbers depending on the brand. Any of these refers to the C-7470 equivalent for the CCP320:
| Brand | Part number |
|---|---|
| Unicel | C-7470 |
| Pleatco | PCC80 |
| Filbur | FC-1976 |
| Pentair OEM (set of 4) | 179134 |
| Pentair OEM (single) | R173573 |
| Pentair / Pac Fab (single) | 178580 |
| Pentair OEM | 817-0081 |
| Aladdin | 18005 |
| Excel Filters | XLS-720 |
| Baleen | AK-60433 |
| Darlly | 70804 |
| Unicel (4-pack) | C-7470-4 |
| Pleatco (4-pack) | PCC80-PAK4 |
| Filbur (4-pack) | FC-6465 |
If your old cartridge carries any part number on this list, the C-7470 replaces it.
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