Rainbow/Pentair RTL-25, model R172502 is a 1-1/2"s top load filter.
For use on portable spas, it is designed to mount in a niche so that the main body is under the shell of the spa, while the top is accessed from above the spa.
Complete Filter Includes:
- Niche Lock Ring (secures the body to the niche).
- Lid Lock Ring (secures the lid).
- Push Down Lever (to secure and release the lid lock ring).
- 25 Sq. Ft. Cartridge.
- Lid w/o Chemical Feeder. (Lid w/ chemical feeder is optional).
Diameter of filter canister: 6-1/2"
Diameter of the hole in the niche: 6-5/8"