The Adjustable Base allows the distributor to supply his customer a mounting base from stock, reducing the time consumed to special order or fabricate a base. All Empire Adjustable Bases are available in Copper, aluminum, stainless steel and galvanized.
Nice sturdy turbine. Worked as advertised, just wished I went this route sooner verses a regular roof vent at first, additional work but worth the effort now my bathroom ventilation is a little more efficient.
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