Navien 60/100 Vertical Roof Terminal Kit with Adaptor – Safe and Efficient Vertical Flue Termination The Navien 60/100 Vertical Roof Terminal Kit with Adaptor is a reliable solution for venting exhaust gases through a roof. Designed for use with Navien gas water heaters and compatible flue systems, this kit ensures safe and efficient expulsion of gases directly into the atmosphere. It not only enhances the functionality of your flue system but also protects the building structure by securely sealing the roof penetration against weather elements. Key Features and Benefits Safe Venting: Ensures the safe expulsion of exhaust gases through the roof, preventing dangerous gas buildup indoors. Weather-R