Achtek 4"x20" Heavy Cast Aluminum AIR RETURN | Powder Coated 4X20 Answer: The initial step is

Answer:  The initial step is to take out the current vent

two counter-sunk screw holes on the short side keep the fit tight and clean

DESIGN COVERAGE / EMPTY AREA RATIO: The Achtek vent is designed

• Fits standard duct opening of 6”x 10” (Overall face plate size 8”x12”)

Size Detail: AIR RETURN-16”x16”

Achtek 4"x20" Heavy Cast Aluminum AIR RETURN | Powder Coated 4X20 Answer: The initial step isDescription: Fits standard duct opening of 4x20 (Overall face plate size 6x22) Floor Mounting (drop in): When installed, the vent cover face plate will sit proud (i. e. on top) of the floor surface Wall Ceiling Mounting: Vent cover to include 2 counter sunk screw holes on the short side of the plate. Installer responsible for secure fixing to structural framing or mounting with anchors (not provided). Color matching wooden screw are included Overall