8" Round Ceiling Diffuser White Powder Coated fitting in 8" Duct Opening Mesh Catcher Net: Included mesh

Mesh Catcher Net: Included mesh catcher basket

Whether you prefer to leave it fully open for optimal airflow or close it off completely to redirect extra heat or air conditioning to other rooms

First thing to know about size selection: take the vent cover off the wall or ceiling

The Listed size 14"x20" is for inside duct opening measurement

the 8" x 8" is the listed size

8" Round Ceiling Diffuser White Powder Coated fitting in 8" Duct Opening Mesh Catcher Net: Included meshFirst thing to know about size selection: take the vent cover off the wall or ceiling. Measure the duct opening where the vent can fit in. Use the measurement to determine right size to buy. This product has listed size 8''X 8'' is for duct opening measurement only, actual outsize overall dimensions is 12''X12''. If your duct opening size is 8''X 8'', this is the right size and will fit in well. If you measure outside or surface size, you will get a