Monessen 4" Uninsulated Flex Duct For Outside Air btu52500 Use as a starter section

Use as a starter section for DuraTech

1 bag recommended for most burners

Variable flame height remote control with standing pilot (-17)

For Boulevard Linear Contemporary Direct-Vent Fireplace

Monessen 4" Uninsulated Flex Duct For Outside Air btu52500 Use as a starter sectionUninsulated Flex Duct The Monessen UD4 4 inch Uninsulated FlexDuct for Outside Air is just one of the many options offered by Monessen. This particular FlexDuct is 4" (100 mm) in diameter. The model number refers to two 42" (1065 mm) sections. The FlexDuct is uninsulated, so it won't be moving incredibly hot air around. It's specifically designed to work well with outside air. Features Weighs 3 pound 4" (100mm) in diameter Uninsulated flex duct for