Made of heavy gauge perforated stainless steel, this false bottom will most 10 gallon water coolers, or could be used in conjunction with weld free fittings in a metal pot. 12" diameter with a 3/8" o.d. stainless hose barb. Attach plastic tubing to this barb to complete your lauter tun. Unlike plastic false bottoms that can float up during the mash because of the light weight, this false bottom will stay at the bottom of the mash vessel where it belongs.