Genuine replacement filter cartridge engineered for Hot Spring Spas by Watkins, featuring 30 square feet of filtration area. This cartridge measures 6" in outside diameter by 10-1/2" in overall length, with matching 1 15/16" open holes at both the top and bottom ends.
Designed specifically for HotSpring brand spa systems manufactured after 1990, including Classic series models. Please note that certain spa configurations may require up to 5 of these filter cartridges for complete system operation.
| Diameter | 6" |
| Length | 10-1/2" |
| Top Style | Open |
| Top Physical Dimension | 1-15/16" |
| Bottom Style | Open |
| Bottom Physical Dimension | 1-15/16" |
| Application | Hot Spring Spas (Watkins), Watkins Mfg/Hot Spring Spas |
| Model | Classic, Models after 1990 |
| Square Footage | 30 sq ft |
| Cross References | FC-3915, C-6430, PWK30 |
