Darlly PP1644 Spa Filter Cartridge
Replaces Filbur FC-2769
- Diameter × length
- 5-5/8" × 18-3/4"
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 PP1644 is a spa filter cartridge, 5-5/8" x 18-3/4". It replaces Filbur FC-2769.
Specifications
| Darlly part number | PP1644 |
|---|---|
| Outside diameter | 5-5/8" |
| Length | 18-3/4" |
| Type | Spa |
| Darlly description | Sundance 6473-164 (Inner) |
Cross-reference
| Brand | Part numbers Darlly PP1644 replaces |
|---|---|
| Filbur | FC-2769 |
Questions
- What size is Darlly PP1644?
- Darlly PP1644 is 5-5/8" in outside diameter and 18-3/4" long.
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.