The 350lb. capacity hopper has a thick wall of HDPE UV Protected plastic that will not rot, rust, or leak! The Custom Designed head features a 10 degree of angle, and a 1″ overhang on the 4″ I.D. feed ports. Each feed port has a drain hole to disperse any water that enters the tip of the feed port. This patented design features an internal cone that dispenses the feed evenly to the three ports. The 3-Way inner sleeve allows the user to control the feed flow of almost all feed shapes and sizes. Push it all the way up to virtually shut off the flow or ease it down until you get the optimal flow on your favorite type of critter food. Our double walled hatch LID tops this unit off in style, and function. Built oversized, this lid allows the hopper system to breathe, thus eliminating condensation while achieving ambient temperature faster than Steel or Fiberglass feeders.