Brower MPO1RN Performance One Unheated Box Stall Drinker,Red MPO1RN Performance One box stall drinker is red, not heated and for corner installations in box stalls, but can be installed outdoors as well Drinker is very easy to clean, no disassembly for cleaning required Waters up to 15 head of most species except swine or works for 1 horse in a box stall For version of heated unit see MPO1RE