5" DuraVent DirectVent Pro Storm Collar (Shown with Flashing) -58DVA-SC
This storm collar is used to maintain a weather-tight resistant seal between the pipe and the flashing and to keep debris and water out of your chimney liner.
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.