Unitherm’s knee operated hand wash sinks are specified throughout America for plants vigilant in food safety and sanitation. Sinks are available one-four stations standard, and up to eight station custom build. As with all Unitherm designed sinks they sit away from the wall, to eliminate breeding grounds for insects and bacteria.. Manufactured from heavy-duty 14 Gauge 304 Stainless Steel, matte finished, fully welded, crack and crevice free. Sinks ship fully plumbed and tested, ready for install.