DuraVent PolyPro Concentric 4" x 6" Extension With SP btu43500 Continuous laser-welded flue and casing

Continuous laser-welded flue and casing allow for clean appearance and installation

Classic and elegant design

DIAMOND GLASS

FasNSeal Double Wall Specification

10 ¼" Base: 13"

DuraVent PolyPro Concentric 4" x 6" Extension With SP btu43500 Continuous laser-welded flue and casingPolyPro Concentric provides users the most versatile polypropylene venting system for high efficiency, condensing appliances. The injection molded modular system is designed with a powder coated aluminum outer pipe and a polypropylene inner pipe. It does not require a locking band and provides users with a fast, safe, clean, and sustainable venting solution. The PolyPro Concentric system also includes elbows that have a smooth wall lining and are