10"w X 6"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] 10" Round Duct Pipe + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246

+ Product Details Size – 36"w X 6"h is the size for the duct opening measurement only

Designed with a ring base for flexible installation

our Butterfly Damper simplifies the process of managing airflow

easy installation

provide precise damper control and superior air dispersion

10"w X 6"h [Duct Opening] 1 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] 10" Round Duct Pipe + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246 + Product Details Size – 36"w X 6"h is the size for the duct opening measurement only Designed with a ring base for flexible installation