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The HART & COOLEY 3EWT wall thimble, made of steel and galvanized, adjusts for various wall thicknesses from 4 to 6 inches. It provides proper clearance for vent from combustibles and serves as a firestop. Ideal for ensuring safety and proper ventilation in residential and commercial settings.
The HART & COOLEY 3EWT wall thimble is a steel, galvanized thimble that adjusts to fit wall thicknesses from 4 to 6 inches.
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