The AF-10-2011 25 Micron Standard Lot 071871 10”x 2.5” KDF Carbon Water Filter is a clear water filter with a flow rate range of 0.5 - 1.0. It is designed for commercial and household use, with a filtration method of KDF and contaminant removal of chlorine. This filter is suitable for residential and industrial housings, has an operating pressure range of 20 - 125 PSI, and an operating temperature range of 40 - 100 degrees. Made in the United States, this filter is a new product with a micron rating of 25.