HVAC Premium Center Tray Tool Storage Tote Bag - 29 Pockets - Padded Handle - Hard Waterproof Base - With Comfortable Shoulder Strap - Medium 4" Diameter + Instructions for Pump Installation

+ Instructions for Pump Installation and Maintenance Pre-Installation Checks

actual front end outer dimensions are approximately 27 5/8" width X 24 5/8" height

+ Product Details Size – 20" x 36" or 36" x 20" is the size for the duct opening measurement only

Height vs Width: The first number in a floor register size

With a 4" diameter for the duct opening measurement

HVAC Premium Center Tray Tool Storage Tote Bag - 29 Pockets - Padded Handle - Hard Waterproof Base - With Comfortable Shoulder Strap - Medium 4" Diameter + Instructions for Pump Installation+ Product Details Size 28 x 30 x 18cm High Quality Huge middle compartment stores all your bigger gear and power tools. Easily reach in and grab what you need immediately. Heavy Duty strong base is waterproof so you don't have to worry about rust or damage. Design 29 Different Pockets 11 External Pockets 12 Internal Pockets 6 Loops Plastic Base with Shoulder Strap The sling loops are thick so you don't have to worry about them coming apart. The sling