Brower MPD20-Gallon Small Animal and Poultry Utility Drinker MPD20 gallon utility drinker waters any poultry, pigs or other small animals Translucent tank with-gallon markers from 12 to 20-gallon increments to assure precise medicating Lift off tank provides for easy cleaning (no bolts) and also affords easy float access Uses one model B78P valve, adjustable