GA1216 PVC Gable Vent ~ Louver box 11.5 x 15.5 ~ Overall 15.5" x 19.5" ~ Kimball Designs Sanded Smooth Functional Ventilation

The stated size 12 x 16 is the (RO) Rough Opening, or the opening in the wall for the louver box. The actual louver box size is 11.5 x 15.5 x 3.The overall dimension including trim is 15.5 x 19.5 x 3.75. Kimball Design uses only the highest quality materials and treated fasteners for years of durable functionality. Kimball Design vents are smooth and ready for paint. PVC can be left unfinished.