For flat, non-insulated roof decks, often used with kitchen grease exhaust applications.
Designed for use with Accurex's model XRUB, XRUBS or XRUD fan to provide the required 40-inch minimum discharge height above the roof line (per NFPA 96)
Vented to allow hot air and gas to escape (per NFPA 96) and noncombustible construction for grease exhaust applications
Meets 40 inch minimum discharge height (per NFPA 96) when used with Accurex's model XRUB, XRUBS or XRUD fans
Keeps insulation protected from airstream
2-inch flashing flange