Quest 746 High Capacity Dehumidifier, 480V

Quest 746 High Capacity Dehumidifier – 746 Pints/Day | 480V | Ultra-Efficient Moisture Control for Large Grow Rooms & Facilities

Engineered for maximum performance and energy efficiency, the Quest 746 High Capacity Dehumidifier (Model #4037610) delivers serious drying power for commercial grow rooms, greenhouses, and industrial environments. Removing up to 746 pints per day at 80°F/60% RH, this 480V, 3-phase unit is powered by patented M-CoRRTM multi-coil technology, making it the most efficient 480V dehumidifier on the market.

Built in Madison, WI and backed by a 5-year warranty, the Quest 746 is both UL-rated and ETL-listed, meeting California Title 24 requirements for both ducted and non-ducted applications. With a 6.5A current draw, it’s the lowest-amp 480V dehumidifier available—freeing up power for other mission-critical equipment in your facility.

Key Features:

• Water removal: 746 pints/day @ 80°F/60% RH
• Energy efficiency: 7.3 pints/kWh @ 80°F/60% RH
• Ultra-low 6.5A draw – frees electrical capacity for other systems
• M-CoRR patented technology – recycles energy for max efficiency
• MERV-13 filtration – removes dust, mold, bacteria & viruses
• Overhead or ground placement options
• Auto restart – resumes operation after power outages
• Integrated handles & hanging points for easy installation
• Hardwired 480V 3-phase power (4,266W draw)
• 1,750 CFM airflow with wide temperature operating range (56°F–95°F)

Commercial Grade Build:

• Refrigerant: R410A
• Dimensions: 44.8″ L × 28.9″ W × 34.1″ H
• Weight: 340 lb
• Filter: 18" × 20" × 2" MERV 13
• Drain port: ¾" threaded NPT
• Control: External controller required
• Power cord: Hardwired (no plug)

Industries Served:

• Agriculture – Greenhouses, vertical farms, and cultivation
• Distribution & Logistics – Protect goods from humidity
• Energy & Utilities – Optimize environmental control in high-demand facilities
• Food & Beverage – Preserve quality during production and storage
• Industrial & Manufacturing – Prevent corrosion and maintain precision
• Inside Self-Storage – Protect stored items from moisture damage
• Natural Supplements – Maintain potency and shelf life
• Science & Technology – Ideal for labs, tech cleanrooms, and data centers
• Sports & Recreation – Control humidity in gyms, pools, and arenas

Whether you’re managing large grow rooms or industrial facilities, the Quest 746 offers unmatched performance, power efficiency, and cleanroom compatibility—all in a rugged, American-made package.

Freight Shipping Notice:

This item ships via freight due to size and weight. Additional shipping charges will apply. We will contact you after checkout with a freight quote or reach out for a custom shipping estimate before ordering.