- Use to install pipe through an interior wall and provide proper clearance from combustibles
- The wall thimble adjusts for various wall thicknesses from 4 to 6 in
- Round shape
- Dimensions: 5-9/16 in ID x 3-1/16 in L
- Finish: Galvanized
- Material: Steel
- Material Gauge: 0.018 in
- Suitable for: Type B Gas Vent