Filters Twice as Fast*. MAXION® Filter Technology Certified to reduce over 12 contaminants, 2x more than Brita**. Reduces certain pesticides, pharmaceuticals, heavy metals, chlorine (taste & odor) and more. LockFit™ Design for easier filter change. 1 Filter provides up to 40 gallons (2 months) of clean water. Replacement Filter Fits TV#'s 234871, 229978 & 229977.