4" Ventis Direct Vent Co-Linear Top Termination with 3" Exhaust & 3" Air Intake - VDV-CTT04
This Top Termination features a built-in 18"×18" top plate to secure a liner from the top of the chimney, and a 3" exhaust, and a 3" air intake for optimal air and exhaust flow.
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.