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Sky Blasts, Storm Collars & Rain Caps |
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Shown flat. Pitched is also available |
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Semi-circular flaps (butterfly damper) cover the exhaust stack when fan is
off. When fan is on, flaps are forced
out of the way to provide a clear path
for air movement. The built-in gutter
system is designed to prevent rain
and snow from entering the stack.
Made from galvanized Spiral pipe for
strength and durability; available in
most sizes. Pre-assembled for immediate
installation. Available with or
without Vanstone flange. Click here for installation instructions.
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