6" DuraVent DuraTech Galvalume Attic Insulation Shield - 6DT-IS
This attic insulation shield is required for installations that pass through an attic to prevent insulation and debris from accumulating near the chimney. Fits over firestop radiation shield or a support box. Consists of two parts: a collar and a base.
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.