Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct w18h18 + Product Details Size -

+ Product Details Size - 32"w X 26"h X 2"d (for duct opening measurement only)

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+ Product Description The Clear Plastic Thermostat Guard provides reliable protection and security for your thermostat while ensuring optimal functionality

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 12" duct openings

A Uniquie Combination of Cotton & Synthetic Fibers Gives You The Most Filtration And The Least Air Resistance - Equals Great Air & Easy Airflow For Your System

Round Stack Boot 12" X 3.25" X 7" round Compatible with 7" Duct w18h18 + Product Details Size -+ Product Details Size The size of a galvanized sheet metal stack boot is 12" X 3. 25" X 7". It is compatible with duct 7". Design The stack boot at the bottom of the stack allows a transition from an ordinary large round or rectangular duct to a thin wall mounted duct. Applications The straight boot is used for a straight line transition going from round pipe or insulated flex duct to wall stack. Premium Quality Our straight round stack boot is made