Radians SV22-2ZOM-3X Polyester Mesh Economy Class 2 High Visibility Zipper Closure Vest with Two-Tone Trim, 3X-Large, Orange For general drainage use in concrete, terrazo, and ceramic tile Ideal for showers, floors, decks, patios and anywhere strainer adjustment and clamping are not required Stainless steel grid 3-Inch x 4-Inch, 5-1/8-Inch flange diameter