EZRvent FV100-SS8H: Foundation, Sub-floor, Soffit and Garage Replacement Vent - Heavy Stainless Mesh (316 Marine Grade) (5 x 14 Rough Opening) Higher Grade Look & Finish: picture frame shadow box frame with recessed screen One size covers range of rough openings 5 x 14 (4-7/8 x 13- to 6 x 14-) Also fits 5" x 13" and 4.5" x13 openings with modification Easy quick labor saving install from outside under 2 min. No stucco or siding replacement required Heavy .028 316 Stainless 1/8" mesh offers added protection of keeping swarming bees and wasps out