4" PelletVent Pro Black Appliance Adaptor - 4PVP-ADB
This appliance adaptor is used to connect PelletVent Pro to BioFlex when relining a masonry chimney. Only approved for use with BioFlex.
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.