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Dual 155


Overhead Series

Energy efficient, more capacity

  • quest-dual-105-dehumidifier
  • Photo of Dual 155

Water Removal

155 Pints/Day

19.4/73.3 Gallons/Liters

Supply Voltage

115V, 60 Hz

8.0 Amps

The Quest Dual 155 is one of the most energy-efficient commercial dehumidifiers on the market today. Removing 155 pints of water per day, this unit can save you thousands in energy costs every year compared to the competition. It gives you the flexibility to hang the unit overhead or use ductwork and keep the dehumidifier in a different space entirely.

Like all Quest products, the Dual 155 is Assembled in Madison, Wisconsin using the very best components and materials available.


  • Agriculture
  • Distribution & Logistics
  • Industrial & Manufacturing
  • Inside Self-Storage
  • Natural Supplements
  • Science & Technology
  • Sports & Recreation

MERV 11 Filtration

Captures dangerous airborne particles


Intake and exhaust kits are available

UL Rated and ETL Listed

The highest safety standard

High Effiency Performace

No dehumidifier is more efficient

Assembled in Madison, Wisconsin

Built to last

Insulated Cabinet

For quieter operation


Our Quest Duals require no installation

Overhead or Ground Placement

Built to fit what works for your space


5 Year

Product Specifications

Part Number
391 CFM @ 0.0" WG
920 Watts @ 80°F and 60%
Supply Voltage
110-120 VAC – 1 Phase – 60 Hz.
Water Removal
155 Pints/Day
7.3 Pints/kWh
Air Filter
Power Cord
10’, 110-120 VAC, Ground
Unit Dimensions
20.25”W X 21.75”H X 38”L (51.4CM X 55.3CM X 96.5CM)
Unit Weight
160 lbs

Product Downloads

Quest Dual 155 Manual
Quest Dual 155 Manual
Quest Dual 155 Spec Sheet
Quest Dual 155 Spec Sheet
Quest Dual 155 Quick Start Guide
Quest Dual 155 Quick Start Guide