.Underbar Beer Drainers - Standard Underbar Beer Drainers - Standard• Featuring A 6In X 4In Rear Column Chase For Inlet Draft Beer Lines, This Specialized Drainboard Allows Your Beer Taps And Drainer To Be Located Under The Bar Top And Out Of The Way Of Both Customers And Bartenders. Built From High-Quality, 18 Gauge, 300 Series Stainless Steel, These Beer Drainers Are Designed To Withstand Everyday Bartender Use.