Final Filter Curb Markets
Green Buildings (LEED)
K-12 Education/Higher Education
Single access door
1”, 2” or 4” Slide-in racks
1” Racks can be used with cartridge (6” or 12”), bag or carbon filters
Pre-Fabricated Final Filters roof curbs are available in the following:
Vibration isolated curb
Final Filter curbs can be provided with the following filters
Cartridge Filters (60-95% Efficient)
Final Filter Options
Doors on both sides of filter curb
Return air filtration
Magnahelic or filter gauge
Curb extension (for factory curbs)
Pre-Fabricated Final Filter Curb to be manufactured of prime G-90 galvanized steel construction, 18 or 14 gauge as required, meeting ASTM A-653/653M, with welded corners and with seams joined by continuous water and air tight welds.
All areas in contact with supply air shall have double wall solid construction with a 20 gage galvanized steel liner.
Hinged side filter access door with heavy-duty hasp or locking system.
Intermediate wood nailer strip with galvanized steel flashing located below filter access door.
Insulated with 1 ½” thick 3 lbs. density rigid fiberglass insulation.
Filter racks shall be constructed of heavy gauge, G90 galvanized steel and accommodate standard size pleated, cartridge, bag, carbon or HEPA style filters with 1” perimeter header frame. *Maximum filter depth for standard final filter curb is 12”.
Final Filter area of roof curb shall be an air-tight plenum with bottom opening to match factory duct opening size.
913 S. Kay Avenue Addison, IL 60101
© 2021 Thybar Corporation