The BOROUX® Water Level Spigot allows you to see how much filtered water is in your system at a glance. It helps you monitor water levels, avoid overfilling, and know exactly when it is time to refill. Designed as a simple upgrade for your gravity-fed water filtration system, it adds everyday convenience and better visibility so you always have clean water ready when you need it. It comes in a 10-inch designed for the 3-Gallon Water Filter System and a 7-inch for the 1.8-Gallon Water Filter System.