OMNIFilter RS5-DS Universal Whole House Filter Cartridge 2 Pack Micron rating  5, Flow rate  5 gpm, Filter capacity  15,000 gallons or 3 months Durable string wound construction reduces sediment and rust particles. Standard cartridge for use with all water - well and chlorinated Fits standard OMNIFilter whole house housings Convenient 2 Pack (a total of 2 filters)