10x4 White Slim Design Aluminum Linear Slot Diffuser (Duct Opening) ALSD and rough edges left by

and rough edges left by an older vent

Larger return openings like 14x6 are often used in central hallways

slide the washable pre-filter into the filter pocket

Make sure there is enough flat surface for a flush fit

Contact Green Vent support before ordering and we will help you choose the right vent cover for your space

10x4 White Slim Design Aluminum Linear Slot Diffuser (Duct Opening) ALSD and rough edges left byCHECK SIZE BEFORE PURCHASE: This 10x4 slim linear slot diffuser fits a 10" 4" duct opening (measure the hole in your wall, ceiling, or floor not your old cover face). See the full 10x4 sizing guide Only 1 1 4" neck depth fits shallow ducts where standard models wont go. Drop in replacement for any 10" 4" duct opening no remodeling required. Modern minimalist slot design that blends with contemporary interiors. Solid alloy aluminum rust proof, dent