Shower Water Filtration System; Type 2-Cartridge; Peak Flow Rate 1.7 GPM; Service Flow Rate 1.7 GPM; Filter Media Type Coconut Shell Carbon; Tank Size 3-3/8 Inch Diameter x 12-1/16 Inch Height; Material High-Impact Plastic; Warranty 5 Year Limited; Inclusions/Features K-77688 Aquifer 2-Pack Cartridge, Under-Sink Installation, 1/4 Turn Twist Cartridge for Easy Installation and Replacement, Cold Water Use Only; Applicable Standard CSA B483.1, NSF 42/53/401; Cartridge Capacity 778 Gallon; Temperature Rating 33 to 100 Deg F