This 13" diameter, hinged, stainless false bottom will cover the entire concave bottom of a Sanke style keg. Stainless hinges (welded to the perforated stainless) allow the screen to be folded in half for easy placement and removal. Made of 18 gauge stainless, without legs. Typically used by brewers who are draining from the bottom of the keg (there is no hole in the center for a drainage tube.) See product our, H110 Stainless Screen (10 in.) - Flat, for a screen with hole. Or our WL331 Weldless Mash Keg conversion - Stainless or WL210 Welded Mash Conversion - Stainless for options for draining kegs through a valve on the side instead of the bottom.