8" Selkirk SuperPro Black Wall Thimble with Trim Collar - SPR8WTB
This wall thimble with trim collar allows for through-the-wall installations. Adjusts to walls up to 7".
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.