Dial Manufacturing 18 in. x 18 in. Multi-Pitch™ Roof Jack Item #3540172 Model #370771 Exceeds 1800 PSI in 24

Exceeds 1800 PSI in 24 hours

easy guard adjustments/positioning

Furnace Blower - Attic Ventilator - Air Handler - Fan Coil Motor

Axial and radial compliance allow the scroll members to separate in the presence of liquid refrigerant

This single cylinder deadbolt can be locked or unlocked by a key on the outside

Dial Manufacturing 18 in. x 18 in. Multi-Pitch™ Roof Jack Item #3540172 Model #370771 Exceeds 1800 PSI in 24Multi 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