Merrimack Valley Models HO Rectangular 3' x 5' Duct Flanges (pkg of 20)

Seen on the rooftops of residential, commercial, and industrial buildings to connect an exterior HVAC system to the the building interior.

Use our modular HVAC system to design the look that works for your scene. 

• 20 per pack
• 2 per joint required (10 joints total)
• Used with other HVAC modular items
• 3D printed in grey resin
• May require minor sanding and painting
• For ages 14 and above