0221L00014 Roof Curb 14 Tall Knocked Down - Durable HVAC Roof Curb Adapter for Commercial Buildings | Perfect for Rooftop Unit Installation & Air Conditioning Systems

0221L00015 Roof Curb 24 Inch Tall KD for HVAC Units - Durable Metal Roof Mounting Solution for Commercial Buildings

0221L00019 Roof Curb 14" Tall Seismic-Resistant with Hold Down Brackets | KD (Knocked Down) | Perfect for Commercial Roofing & HVAC Installations

Hurricane Wind Rated 14" Tall Roof Curb with Hold Down Brackets - Heavy Duty Welded Construction for Commercial & Residential Roofing | Perfect for HVAC Units, Exhaust Vents & Roof Equipment Installation