This filter is Designed for the Coast Hot Tubs 21 5/16 tall X 5 5/16" and has 2 1/8 holes top and bottom... And fits
| Diameter | 5-5/16" |
| Length | 21-5/16" |
| Top Style | Open |
| Top Physical Dimension | 2-1/8" |
| Bottom Style | Open |
| Bottom Physical Dimension | 2-1/8" |
| Media Type | 3oz |
| Application | Coast Spas (Canada), Waterway |
| Square Footage | 100 sq ft |
| Filbur Number | FC-2975 |
| Unicel Number | C-5396 |
| Pleatco Number | PCST80 |
| OEM Number | 817-0098 |
