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Single Duct Boxes

Single Duct VAV Boxes 80 to 8,000 cfm Model MQTH15

The variable air volume (VAV) box Model MQTHI5 is our high performance single duct air terminal product line. This series is available in a wide range of sizes with available capacities from 80 to 8,000 CFM. The MQTHI5 unit sets the standard in the industry for construction, performance, and quality. 

• Supplied with a round inlet collar on unit sizes 6"-16" and rectangular inlets on sizes 20" and 24"
• Outlets are rectangular with slip and drive connections
• Units include an external 20-gauge control mounting panel
• Control panel covers are included on all units