Reduce Pour Cost & Maximize Profits! Minimize beer loss when changing kegs. Foam is beer - stop wasting it when a keg empties. PRO-MAX (FOB detector) senses an empty keg, and shut down the flow of beer in the line. With PRO-MAX in-line profit maximizer the beer line remains full when the keg empties. There is no need to re-fill the beer line: this reduces waste and maximizes glasses per keg. Easy to Operate: Replace the keg, reset the PRO-MAX (FOB), and beer is flowing again. Multiply the glasses wasted per week by your profit per glass to see the money you could gain with a profit maximizer. Product Highlights: Manufactured of stainless steel & glass Finest FOB in the industry Large beer chamber for easy viewing Wall mount Stainless steel hose connections