32" x 8" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply [Outer Dimensions: 34w X 10"h] Insulated Line Actual Filter Size – 15

Actual Filter Size – 15 3/4"w x 31 3/4" x 1"

High Quality – Heavy-gauge all-steel construction

+ Product Details Size - 20"w X 22"h X 2"d (for duct opening measurement only)

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 34 5/8" width X 12 5/8" height -

32" x 8" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply [Outer Dimensions: 34w X 10"h] Insulated Line Actual Filter Size – 1532"w X 8"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 34" Width X 10" Height SEE IN DESCRIPTION HOW TO MEASURE A GRILLE Installs Directly On Round & Oval Spiral Duct No Frames, Box or Other Attachments Needed Commercial Grade Aluminum Will Never Rust Designed for Warehouses, Factories, Workshops, Gymnasiums & Restaurants Easy Unrestricted Air Flow For Your HVAC System 180 Degrees Double Direction