Our round and oval sinks include a unique overflow device that eliminates the sloppy overflows sometimes encountered with "standard" marine installations. Each sink includes a stainless steel drain fitting mated to a brass tailpiece for 1" hose. The drain design incorporates a clever flip seal with a rubber o-ring, eliminating the headache of lost plugs. Installation of these sinks is easy, as the over-the-counter flange design requires no flange fixing system. Made of 304 stainless steel, and hand polished to a deep luster, we recommend these sinks for new installations or replacement of old-fashioned sinks that do not have overflow protection.