8" X 4" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 5.75"H] 10" Diameter actual front end outer dimensions Ducting Components RG2016 FBA-HP Applications The C box

actual front end outer dimensions are approximately 16 5/8" width X 30 5/8" height

Actual Filter Size – 29 3/4"w x 9 3/4" x 1"

Designed for optimal air flow and lasting durability

Key features:

Quality Packaging - Carefully Shrink Wrapped with Cardboard Backing to Prevent Damage in Shipment

8" X 4" [Duct Opening] 3 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 5.75"H] 10" Diameter actual front end outer dimensions Ducting Components RG2016 FBA HP Applications The C box actual front end outer dimensions are approximately 16 5 8" width X 30 5 8" height Actual Filter Size – 29 3 4"w x 9 3 4" x 1"