3M Aqua-Pure Whole House Replacement Water Filter &ndash; Model AP910R High-capacity cartridge filters up to 100,000 gallons of water before replacement Polyester filtration material reduces particulate as small as five microns in size Quick-change style means no-tools replacement High flow rate provides 20 gallons (75.7 liters) of filtered water per minute Sanitary cartridge design keeps filter material enclosed during change-out