For whole house installations you should purchase the same diameter Vortex Water Revitalizer as the diameter of your main water line pipe, before it splits into hot and cold pipes. For example if your main water line is ¾” diameter you should purchase either the Standard Vortex Water Revitalizer ¾”* or the River of Life Vortex Water Revitalizer ¾”**.
When purchasing a Vortex Water Revitalizer for Filters, your under or over the counter water treatment system will have tubing leading to a spout where you will receive your drinking water. This tubing will either be 3/8” or 1/4”. The River of Life for Filters*** comes in either of these diameters. The Standard Filter Vortex Water Revitalizer**** also comes with Snap-On Fittings, which can fit on to either a 3/8” or 1/4” tube.