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Unitized co axial venting system for direct vent
Found 1 free book(s)Unitized, co-axial venting system for direct vent gas or ...
www.duravent.comSpeci˜cations Applications DirectVent Pro is a unitized, coaxial (concentric) venting system designed for use with direct vent gas or propane stoves, heaters, and ˜replaces.