The CFB-Plus20BB, Modified Carbon Block Filter is suitable for homes that have a high quantity of parasitic cysts in drinking water. The CFB-Plus series is an upgrade over the CFB series and removes chlorine and sediment more efficiently. The filter is made entirely of FDA approved materials and is ideal for most residential, commercial, industrial and food service filtration. The filter has an impressive flow rate of 4 gpm and the micron rating is 5 microns. It purifies your drinking water off dirt, sediments, silt, and the taste and odor of chlorine. The temperature range is 40 F to 180 F, pressure drop is 4.3 psi and the capacity at 4 gpm is 50,000 gallons. The filter has dimensions of 4.5" x 20".