Replacement Vent Inserts, No Frame: Envisivent Removable Flush Mount Air Return Vent, 20" x 30" (Drywall Opening) Insert 4" x 10" DUCT OPENING

4" x 10" DUCT OPENING Vent Cover/Floor Opening 4" x 10" Slotted Openings 4 slots: 3 9/16" x 9/16"

375" Sizing Guide Click here for Sizing Guide

this matte white magnetic vent cover blends sleek design with exceptional durability

and water-resistant

18 straight horizontal slots

Replacement Vent Inserts, No Frame: Envisivent Removable Flush Mount Air Return Vent, 20" x 30" (Drywall Opening) Insert 4" x 10" DUCT OPENINGDescription A replacement vent cover insert for CB5028. THIS ITEM IS NOT SUITABLE FOR CEILING INSTALLATION WITHOUT THE USE OF OUR CEILING CLIPS WHICH CAN BE ORDERED HERE *To ensure you select the correct Envisivent product size, be sure to review our Sizing Guide in our Resource section. Key Features Two rows of 30 straight horizontal slots, totalling 60 slots Over 158 square inches of open vent area Moisture, mold, and water resistant Primed and