Hydro-Logic 22070 20-Inch by 4.5-Inch Big Boy KDF85/Catalytic Carbon upgrade filter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Ideal for well water users with iron and sulfur and city water users with chloramines</li><li>Delivers clean water without tastes or smells</li><li>For use with the Hydro-Logic Big Boy</li><li>Reverse Osmosis Water Purification Unit Big Boy KDF85 Carbon Filter</li><li>Ideal for well water users with iron and sulfur and city water users with chloramines</li><li>KDF Filtration Media To Reduce Heavy Metals， Microorganisms and Scale</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/21Z9IYl-uXL.jpg' noproxy></br>