The Sprite Slim-Line 2 Shower Filter has NSF certified performance in a sleek, high-strength plastic housing. Inside the housing is a replaceable 6 month filter cartridge (model SLC) engineered with Sprite’s exclusive Extend-A-Path Baffle System. This system allows the water more contact time with the filter for the ultimate chlorine-free shower. Original Slim-Line series units have a low footprint of approximately 1.5 inches, making them ideal for achieving the most filtration with minimum intrusion. Sprite’s “Universal” filters are named for their universal fit and appeal!