Hopper Ducts

Hopper Ducts is a mod by FyberOptic based around variations of the Vanilla Hopper. It adds two new variations of the Hopper, the Grated Hopper, and the Hopper Duct. The Grated Hopper is a version of the Hopper that allows for item filtering/sorting. The Hopper Duct is the main part of the mod, which acts similar to a standard pipe.