Product details:

Roof ventilator accessories work on all kinds of roofing material and roof angles. Here are some important details for Zoro Select Equipment Mounting Rail. Includes: Factory Installed 2 x 4 Wood Nailer and 18 Gauge Galvanized Steel Counter-flashing with Screws, Construction Material: 18 Gauge Galvanized steel, For Use With: Condensers, Blowers and Other Roof Mounted Equipment.FeaturesMax. Allowable Load (Lb.): 900Length (Ft.): 3Item: Equipment Mounting RailWidth (In.): 3-1/2For Use With: Condensers, Blowers and Other Roof Mounted EquipmentConstruction Material: 18 Gauge Galvanized steelHeight (In.): 8Includes: Factory Installed 2 x 4 Wood Nailer and 18 Gauge Galvanized Steel Counter-flashing with Screws

• Width (In.): 3-1/2
• Includes: Factory Installed 2 x 4 Wood Nailer and 18 Gauge Galvanized Steel Counter-flashing with Screws
• Construction Material: 18 Gauge Galvanized steel
• Height (In.): 8
• Length (Ft.): 3
• For Use With: Condensers, Blowers and Other Roof Mounted Equipment
• Item: Equipment Mounting Rail
• Max. Allowable Load (Lb.): 900