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The Simpson Dura-Vent Type "B" gas vent system features a twist lock connection which offers a superior positive-lock that is fast and easy to assemble. When necessary, the system may be disconnected without damage to the product.
(Important note: For all double wall round venting installations that require roof jacks (flashings) with a 6/12 pitch or less, please use our Hercules manufactured roof jacks. They can be found in the galvanized sheet metal products category under "fittings". For example, for 5" double wall vent, use either 5.5FRF for a flat roof or 5.5ARF for a 2/12-6/12 pitched roof.) |
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