The DuraVent 3"-4" Inner Diameter PelletVent Pro Male or Female Flex Adapter is a premium pellet stove vent adapter designed to provide a secure transition between PelletVent Pro rigid vent pipe and flexible chimney liner systems. Engineered by DuraVent, the industry leader in professional venting solutions, this flex adapter delivers dependable performance for wood pellet stoves, corn-burning appliances, biofuel heaters, and oil-burning systems. Its precision construction ensures a tight, leak-resistant fit while maintaining the efficiency and safety of your PelletVent Pro venting installation.

Built with a corrosion-resistant inner wall and laser-welded double-wall construction, the PelletVent Pro flex adapter offers exceptional durability and long-lasting reliability. It is UL listed for a 1-inch clearance to combustibles in both the United States and Canada, making it ideal for code-compliant installations. Factory-sealed components improve vent system integrity, while the advanced air-insulated design enhances draft performance. Trusted by installers for decades, DuraVent PelletVent Pro remains the preferred choice for safe, efficient, and professional pellet stove chimney venting systems.