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THIMBL WAL BVNT4"4RV-WT (Pkg of 3)
DESCRIPTION
THIMBL WAL BVNT4"4RV-WT
- 4 4RV-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