Under Sink Water Filter packages are designed to save you money. All of our packages come with a Premium Under Sink Water Filter and Designer All in one three way mixer. Three way mixers are designed to eliminate the need to install an extra tap/faucet meaning you dont need to drill an extra hole in your benchtop or sink. All of our kits come complete and ready to install with installation instructions. Purchase an Under Sink water Filter/Three way mixer package and save.