Darlly 71053 Pool Filter Cartridge
Replaces Unicel C-7471 · Pleatco PCC105 (now ULTRA-A6) · Filbur FC-1977
- Diameter × length
- 7" × 26-1/16"
- Filter area
- 105 sq ft
- End caps
- 3" Open / 3" Open
Pool and spa businesses in Florida, Georgia, South Carolina, Alabama, Mississippi, Louisiana and Texas order through their Grit Game rep. Everywhere else, contact Darlly Filtration directly.
Darlly 71053 is a 105 sq ft pool filter cartridge, 7" x 26-1/16". It fits the Pentair Clean & Clear Plus 420 (CCP420) and the Waterway Crystal Water 425, which take 4 cartridges each. It replaces Unicel C-7471, Pleatco PCC105 (now ULTRA-A6), Filbur FC-1977, Pentair R173576 and Pac-Fab 178584.
Specifications
| Darlly part number | 71053 |
|---|---|
| Outside diameter | 7" |
| Length | 26-1/16" |
| Top end cap | 3" Open |
| Bottom end cap | 3" Open |
| Filter area | 105 sq ft |
| Type | Pool |
| Cartridges per filter | 4 |
| Darlly description | Clean & Clear Plus, Waterway Crystal Water |
Cross-reference
| Brand | Part numbers Darlly 71053 replaces |
|---|---|
| Unicel | C-7471 |
| Pleatco | PCC105 (now ULTRA-A6), ULTRA-A6 |
| Filbur | FC-1977 |
| Hurricane (former brand) | HF7471-04 |
| OEM and other numbers | Pentair R173576, Pac-Fab 178584, Waterway 817-0106 |
Filters it fits
| Filter | Cartridges per filter | OEM cartridge number |
|---|---|---|
| Pentair Clean & Clear Plus 420 (CCP420) (420 sq ft filter) | 4 | R173576, 178584 filter part 160301 |
| Waterway Crystal Water 425 (425 sq ft filter) | 4 | 817-0106 filter part 570-0425-07 |
Also made as PP71053, the same size.
Questions
- What is the Darlly replacement for Unicel C-7471?
- Darlly 71053 replaces Unicel C-7471. Both are 7" in diameter and about 26-1/16" long.
- What Darlly cartridge replaces Pleatco PCC105?
- Darlly 71053 replaces Pleatco PCC105, which Pleatco now sells as ULTRA-A6.
- How many cartridges does the Pentair Clean & Clear Plus 420 (CCP420) use?
- It takes 4 cartridges. Order 4 of Darlly 71053 to replace the full set.
- What size is Darlly 71053?
- Darlly 71053 is 7" in outside diameter and 26-1/16" long, with 105 sq ft of filter area.
Cross-reference checked October 21, 2026 against Unicel's 2026 Replacement Guide, Pleatco's catalog (updated September 2025), filbur.com and darllyfilter.com. A competitor number is listed only when that brand's own data pairs it with the same cartridge size. Always compare the size and end caps of your old cartridge before ordering.
Brand names and part numbers are trademarks of their respective owners and are shown only to identify compatible replacements. Darlly Filtration is not affiliated with or endorsed by them. Cross-reference by The Grit Game, Darlly's sales agency.