The Pentair Rainbow RTL-50 Top Load Filter -- 50 sq. ft., 1.5-Inch Slip (R172504) is a complete 50 square foot cartridge filter assembly for portable spa installations, using a 1.5-inch slip plumbing connection. The RTL-50 mounts in a niche under the spa shell with the top accessible from above the spa. Canister diameter: 6-1/2 inches, niche hole diameter: 6-5/8 inches. Includes niche lock ring, lid lock ring, push-down lever, 50 sq. ft. cartridge, and lid without chemical feeder. A widely used spa filter assembly used in many hot tub brands requiring the 50 sq. ft. cartridge size in 1.5-inch plumbing.

SKU: R172504