Triple Stage Big Blue System is designed with a three-stage water filtration system that consists of Polypropylene Sediment Removal filters an A Activated Carbon Block filter. This system is a simple way of removing unwanted particles from the water supply to your home. With this Option the Big Blues are pre-built onto a single stand unit, making it easy to move and easy to install with just a single inlet and outlet. The stand bracket also gives the option of either having the system stand on the ground or having it mounted onto a wall.