5" DuraVent DirectVent Pro Wall Thimble - 58DVA-WT
This wall thimble provides a complete wall-pass-through and firestop. Use with square horizontal cap only. May be required in Canada. Refer to the appliance manufacturer's installation instructions for requirements.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.