10"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 25.75"h] 14" Round Duct Pipe + Product Details Size - RFG3024 Black HP const content item Hi-Lo Oval Stack Head

+ Product Details Size - 8"w X 34"h X 2"d (for duct opening measurement only)

Actual Filter Size – 17 3/4"w x 7 3/4" x 1"

The process is intuitive: simply select the appropriate ceiling square for your grill

Actual Filter Size – 13 3/4"w x 5 3/4" x 1"

+ Product Details Size – 20"w X 32"h is the size for the duct opening measurement only

10"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 11.75"w x 25.75"h] 14" Round Duct Pipe + Product Details Size RFG3024 Black HP const content item Hi Lo Oval Stack Head + Product Details Size 8"w X 34"h X 2"d (for duct opening measurement only) Actual Filter Size – 17 3 4"w x 7 3 4" x 1"