Oatey 42751 Sink and Drain Equipment, Small 5 1/4"" x 5 1/4"" FLAT ALUMINUM GRATE Fits at the bottom of floor sink Acts as a bottom strainer 5 1/4" x 5 1/4" FLAT ALUMINUM GRATE Fits at the bottom of floor sink Acts as a bottom strainer 9 3/16" x 9 3/16" x 3/4" - Plastic