DIAL 78318 Multi-Pitch 20 in. Galvanized Sheet Metal Adjustable Roof Jack

Product Description

The DIAL 78318 is a multi-pitch adjustable roof jack designed for the installation of major brands of residential ducted downdraft coolers. This roof jack features preinstalled rails for supporting an optional max-Aire barometric damper.

• Flanged design for easy installation
• Adjustable for flat roofs and roofs pitched up to 6/12
• Available for different airflow capacities

Product Highlights

This adjustable roof jack is ideal for various roof types and is versatile for different cooling systems.

Product Information

Standard Information

• Brand: DIAL
• MPN: 78318

Technical Specifications

• Flanged Design: Yes
• Adjustable: Yes
• Max Airflow Capacity: 3000 to 4500 CFM with 17-3/4 in. discharge opening
• Alternative Capacity: 5500 to 7000 CFM with 19-3/4 in. discharge opening
• Maximum Roof Pitch: 6/12
• Material: Galvanized Sheet Metal
• Preinstalled Rails: Yes
• Application: Residential Ducted Downdraft Coolers