Dial Manufacturing 18 in. x 18 in. Multi-Pitch™ Roof Jack Item #70016 Model #28828228 Requires no power source to

Requires no power source to operate

whether you work in a two-car garage or a massive warehouse

Easy application with a high quality natural bristle brush or a cloth

Provides peace of mind with a 6-year limited tank and parts guarantee and a 1-year limited labor warranty

Dial Manufacturing 18 in. x 18 in. Multi-Pitch™ Roof Jack Item #70016 Model #28828228 Requires no power source toMulti 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