The Nordic 25 R is a compatible replacement for the following pool filters:
The Nordic Spas - 25 Sq Ft Comp. Pool and Spa Filter purifies water in swimming pools and spas by reducing contaminants. This compatible Nordic Spa filter replacement measures 4 15/16 inches in diameter and 13 5/16 inches in length with 2 1/8 inches Open top/bottom holes. This spa filter cartridge features media area of 25 sq. ft.