GE FX18P Reverse Osmosis Pre- and Post-Filter

FX18P Features: -RO filter.-Replacement Filters - Under Sink Water Filter and Reverse Osmosis systems.-Activated Carbon Block Pre-Filter and Granulated Activated Carbon Post-Filter.-Micron Rating (Nominal): 0.5.-Pre-Filter Media: Carbon Block.-Post-Filter Media: Granular Activated Carbon. Specifications: -The GE FX18P water filters reduce chlorine taste and odor and improve flavor of hot and cold beverages including coffee, tea, and juices.-The GE FX18P Water Filter set contains one Activated Carbon Block Pre-Filter and one Granulated Activated Carbon Post-Filter.-The GE FX18P water filters should be replaced every 6 months or 900 gallons, whichever comes first. Dimensions: -Pre-Filter Dimensions: 10'' L x 2.75'' W.-Post-Filter Dimensions: 9.25'' L x 2'' W.-Overall dimensions: 2'' H x 10'' W x 2'' D.