For better drinking water, pure and simple, use the Complete Omnipure Water Filter Kit in your brewers. To avoid using straight tap water, you can screw the filter unit into the back of your brewer. Use with K150P, K200 and K3000SE Keurig brewers. The kit includes one water filter cartridge, one valve head, one mounting bracket, self-tapping screws (four), one garden hose plumb fitting, 12' of 1/4" tubing, 90-degree elbows (three), NPTF connectors (two), and one ball valve 1/4" x 1/4".