Direct Vent Pro by M&G Duravent (previously Simpson Duravent) is a top quality chimney system made specifically for direct vent gas appliances. Its twist-lock design allow a quick, secure, fastener free connection. Duravent "Direct Vent Pro" is the most recommended system in the industry for chimney and fireplace repairs or new builds and listed in some appliance manufacturers instruction manuals specifically. The 5" x 8" DirectVent Pro Pipe includes:
Coaxial design allows combustion air to enter and exhaust to exit for direct vent specific appliances.