DuraVent PolyPro Concentric 3" x 5" Extension With SP h38.625 HFB-BBB Blower is for the

HFB-BBB Blower is for the HVF Builder Fireboxes

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The heritage is the perfect fit for Victorian

DuraVent PolyPro Concentric 3" x 5" Extension With SP h38.625 HFB-BBB Blower is for thePolyPro 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