Darlly 60401 Spa Filter Cartridge
Replaces Unicel 6CH-940 · Pleatco PWW50P3 / ULTRA-S13 · Filbur FC-0359
- Diameter × length
- 6" × 8-1/4"
- Filter area
- 45 sq ft
- End caps
- semi-circular Handle / 1-1/2" SAE thread
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 60401 is a 45 sq ft spa filter cartridge, 6" x 8-1/4". It fits the Waterway Front Access Skim Filter 50 and the Waterway Front Access Skim Filter 100 (cartridges side by side; 2 cartridges). It replaces Unicel 6CH-940, Pleatco PWW50P3 or ULTRA-S13, Filbur FC-0359, Waterway 817-0050 and Aber 03FIL1400.
Specifications
| Darlly part number | 60401 |
|---|---|
| Outside diameter | 6" |
| Length | 8-1/4" |
| Top end cap | semi-circular Handle |
| Bottom end cap | 1-1/2" SAE thread |
| Filter area | 45 sq ft |
| Type | Spa |
| Blue antimicrobial version | 60401M |
| Darlly description | top load |
Cross-reference
| Brand | Part numbers Darlly 60401 replaces |
|---|---|
| Unicel | 6CH-940 |
| Pleatco | PWW50P3, ULTRA-S13 |
| Filbur | FC-0359 |
| Hurricane (former brand) | HF6H940-01 |
| OEM and other numbers | Waterway 817-0050, Aber 03FIL1400 |
Older or other numbers that also point to this cartridge (not confirmed by a second source): PWW50 (Pleatco).
Filters it fits
| Filter | Cartridges per filter | OEM cartridge number |
|---|---|---|
| Waterway Front Access Skim Filter 50 (50 sq ft filter) | 1 | 817-0050, 03FIL1400 |
| Waterway Front Access Skim Filter 100 (cartridges side by side) (100 sq ft filter) | 2 | 817-0050 |
The Front Access Skim Filter 100 takes two, side by side. 60416 is the same size with a square thread.
Other Darlly cartridges the same size
Same diameter and length. Check the end caps and area before swapping.
Questions
- What is the Darlly replacement for Unicel 6CH-940?
- Darlly 60401 replaces Unicel 6CH-940. Both are 6" in diameter and about 8-1/4" long.
- What Darlly cartridge replaces Pleatco PWW50P3?
- Darlly 60401 replaces Pleatco PWW50P3.
- How many cartridges does the Waterway Front Access Skim Filter 100 (cartridges side by side) use?
- It takes 2 cartridges. Order 2 of Darlly 60401 to replace the full set.
- What size is Darlly 60401?
- Darlly 60401 is 6" in outside diameter and 8-1/4" 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.