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5-in H x 18-in diameter profile is designed for easier installation
and economical ventilation solutions
a material that has a high resistance to heat
The 8” media is a good economical choice for high efficiency cooling
Dial Manufacturing 20 in. x 20 in. Multi-Pitch™ Roof Jack Model #TB-H1-1R-S18 5-in H x 18-in diameterMulti Pitch adjustable roof jacks are ideal for the installation of all major brands of residential ducted down draft coolers. Rails are pre installed to support an optional Max Aire barometric damper. Roof jacks are flanged and adjustable for flat roofs and for roofs pitched up to 6 12. 3000 to 4500 CFM jacks have 17 discharge opening. 5500 7000 CFM jacks have a 19 discharge opening. Caution: Roof jacks are intended for use as air distribution
