Durable Backpack Tool Bag Rubber Bottom and Center Removable Console - for HVAC, Electricians, Utility Work, Crafts, Carpentry and Construction 18" Round Duct Pipe + Product Details Size -

+ Product Details Size - 14"w X 28"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 16"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 36" or 36" x 10" duct opening (measured at the opening)

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

Actual Filter Size – 24 3/4"w x 5 3/4" x 1"

Durable Backpack Tool Bag Rubber Bottom and Center Removable Console - for HVAC, Electricians, Utility Work, Crafts, Carpentry and Construction 18" Round Duct Pipe + Product Details Size -+ Product Details Size: 30w x 40h cm High Quality: Hard, heavy duty weatherproof molded bottom fully protects your tools from any rust or damage. Perfect backpack for HVAC technician, electrician, mechanic, craftsman, construction professional, etc. Design: 2 Large Center Compartments 5 External Pockets 55 Internal Pockets 6 Loops Sponge Airing and Comfort System in the Back Belt Straps Extra Strong: Padded molded handle assures that you have a good