Darlly 60451 Spa Filter Cartridge
Replaces Unicel 6CH-45 · Pleatco PTL45W-P4 (discontinued) · Filbur FC-0330
- Diameter × length
- 6" × 12-3/8"
- Filter area
- 45 sq ft
- End caps
- semi-circular handle / 1-1/2" male thread/MPT
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 60451 is a 45 sq ft spa filter cartridge, 6" x 12-3/8". It replaces Unicel 6CH-45, Pleatco PTL45W-P4 (discontinued) and Filbur FC-0330.
Specifications
| Darlly part number | 60451 |
|---|---|
| Outside diameter | 6" |
| Length | 12-3/8" |
| Top end cap | semi-circular handle |
| Bottom end cap | 1-1/2" male thread/MPT |
| Filter area | 45 sq ft |
| Type | Spa |
| Darlly description | top load |
Cross-reference
| Brand | Part numbers Darlly 60451 replaces |
|---|---|
| Unicel | 6CH-45 |
| Pleatco | PTL45W-P4 (discontinued) |
| Filbur | FC-0330 |
Older or other numbers that also point to this cartridge (not confirmed by a second source): PTL45W (Pleatco).
Questions
- What is the Darlly replacement for Unicel 6CH-45?
- Darlly 60451 replaces Unicel 6CH-45. Both are 6" in diameter and about 12-3/8" long.
- What Darlly cartridge replaces Pleatco PTL45W-P4?
- Darlly 60451 replaces Pleatco PTL45W-P4.
- What size is Darlly 60451?
- Darlly 60451 is 6" in outside diameter and 12-3/8" long, with 45 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.