The hot tub filter for PRB25SF and Unicel M-4306 comes in a pair, each filter is 6-5/8 inches long and the two stacked have a total length of 13-1/4 inches. For optimal fit and performance, verify that this filter cartridge matches the dimensions of the old filter in your spa.
Filter details:
- ProAqua P/N: PA-1406
- Diameter: 4-15/16″
- Length: 6-7/16″
- Top: 2-1/8″ Hole
- Bottom: 2-1/8″ Hole
- Media: 50 sq.ft. (Pair)
- NOTE* Price is for two filters, sold in a pair.
Compatible replacement for:
- Pleatco PRB25SF-JH-PAIR
- Filbur FC-2387
- Unicel C-4405
- Unicel M4306
- 817-5010
- 17-2464
- R173433
