Description
Adjusts for various wall thicknesses from 4 to 6 in. Provides proper clearance for vent from combustibles and serves as a firestop.
AmeriVent
$28.25
AmeriVent 4EWT Wall Thimble, 4-9/16 in ID x 3-1/16 L Dimensions, 0.018 Gauge, Galvanized Steel
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