LiquaGen B00MTTHYBI Triple Big Blue 20'' Water System-1" Sediment/Carbon/GAC Filters, 4.5 x quot This product is great for home/small commercial applications. Filters the water entering your home for ultra pure water. Removes from 95 - 96.5% impurities in your home.Assembly Required. Filters Size : 4.5" x 20". Filtration Stages : 1st Stage : Sediment Block (5 micron) , 2nd Stage : Granular Activated Carbon (GAC) , 3rd Stage : Coconut Carbon Block No waste water. No electricity required. Pressure release for easy filter change. Filters Size : 4.5" x 20" | Assembly Required Includes : Filters, Housing, Bracket, 12 Screws , 2 Nipples, and 1 Wrench. 1" input and output ports. Rating: 15 gallons per minute