SELKIRK CORP 187703 3-Inch Wall Thimble

Product Description

3", 3RV-WT, Wall Thimble. Adjusts 4-1/8" to 7" to fit wall thickness. Round Type B gas vent. When installed according to manufacturer specifications, the wall thimble provides the required 1 inch air space to combustibles. Tested and listed per UL-441 for installation as type "B" and B-W gas vents to be installed in single and multi-story buildings.

Features

• 3", 3RV-WT, Wall Thimble
• Adjusts 4-1/8" to 7" to fit wall thickness
• Round Type B gas vent
• When installed according to manufacturer specifications, the wall thimble provides the required 1 inch air space to combustibles
• Tested and listed per UL-441 for installation as type "B" and B-W gas vents to be installed in single and multi-story buildings

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