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Quest Dehumidifiers

Developed in Madison, Wisconsin, Quest dehumidifiers have set the gold standard in energy efficiency, durability, reliability and flexibility.

With a full five-year warranty, Quest humidity control products come in a wide array of sizes and options, allowing you to customize and design your perfect environment for your industry’s specific needs.

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  • Quest 746 Dehumidifier | 746 Pints/Day | 480V - LED Grow Lights Depot
    $12,999.95 - $12,999.95
    $12,999.95
    $12,999.95 - $12,999.95
    $12,999.95

    Quest 746 Dehumidifier | 746 Pints/Day | 480V

    QUEST 746 DEHUMIDIFIER | 746 PINTS/DAY | 480V-3 Phase The Quest 746 480V dehumidifier features our patented M-CoRRTM Technology. This multi-coil d...

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    $12,999.95 - $12,999.95
    $12,999.95
    $12,999.95 - $12,999.95
    $12,999.95
  • Quest 506 Dehumidifier | 500 Pints/Day | 208-230V - LED Grow Lights Depot
    $8,659.95 - $8,659.95
    $8,659.95
    $8,659.95 - $8,659.95
    $8,659.95

    Quest 506 Dehumidifier | 500 Pints/Day | 208-230V

     QUEST 506 DEHUMIDIFIER | 500 PINTS/DAY | 208/230V Taking innovation to the next level, the Quest 506 208/230V dehumidifier is the newest generati...

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    $8,659.95 - $8,659.95
    $8,659.95
    $8,659.95 - $8,659.95
    $8,659.95
  • Quest 506 Dehumidifier | 500 Pints/Day | 277V - LED Grow Lights Depot
    $8,659.95 - $8,659.95
    $8,659.95
    $8,659.95 - $8,659.95
    $8,659.95

    Quest 506 Dehumidifier | 500 Pints/Day | 277V

    QUEST 506 Dehumidifier | 500 Pints/Day |  277V @ 80 F | 60% RH Capacity 500 Pints/Day Efficiency 9.2 Pints/kWh Supply Voltage 277V Current...

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    $8,659.95 - $8,659.95
    $8,659.95
    $8,659.95 - $8,659.95
    $8,659.95
  • Quest 335 Dehumidifier | 345 Pints/Day | 208-230V - LED Grow Lights Depot
    $5,699.95 - $5,699.95
    $5,699.95
    $5,699.95 - $5,699.95
    $5,699.95

    Quest 335 Dehumidifier | 345 Pints/Day | 208-230V

    QUEST DEHUMIDIFIER | 345 PINTS PER DAY | 208-230V The Quest 335 208/230V dehumidifier is engineered specifically for commercial spaces facing a he...

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    $5,699.95 - $5,699.95
    $5,699.95
    $5,699.95 - $5,699.95
    $5,699.95
  • Quest 335 Dehumidifier | 345 Pints/Day | 277V - LED Grow Lights Depot
    $5,699.95 - $5,699.95
    $5,699.95
    $5,699.95 - $5,699.95
    $5,699.95

    Quest 335 Dehumidifier | 345 Pints/Day | 277V

    QUEST 335 DEHUMIDIFIER | 345 PINTS PER DAY | 277V A Heavy Duty, High-Efficiency Dehumidifier First-class Humidity control in your Facilities The Q...

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    $5,699.95 - $5,699.95
    $5,699.95
    $5,699.95 - $5,699.95
    $5,699.95
  • Quest 205 Dehumidifier | 200 Pints/Day | 110-120V - LED Grow Lights Depot
    $4,314.95 - $4,314.95
    $4,314.95
    $4,314.95 - $4,314.95
    $4,314.95

    Quest 205 Dehumidifier | 200 Pints/Day | 110-120V

    QUEST DUAL 205 OVERHEAD SERIES @ 80 F / 60% RH Capacity 200 Pints/Day Efficiency 7.7 Pints/kWh Supply Voltage 110-120V Current Draw 10.0 ...

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    $4,314.95 - $4,314.95
    $4,314.95
    $4,314.95 - $4,314.95
    $4,314.95
  • Quest 225 Dehumidifier | 225 Pints/Day | 208/230V - LED Grow Lights Depot
    $3,659.95 - $3,659.95
    $3,659.95
    $3,659.95 - $3,659.95
    $3,659.95

    Quest 225 Dehumidifier | 225 Pints/Day | 208/230V

    Quest Next Gen 225 Dehumidifier | 225 Pints/Day | 208/230V @ 80 F | 60% RH Capacity 225 Pints/Day Efficiency 7.6 Pints/kWh Supply Voltage 20...

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    $3,659.95 - $3,659.95
    $3,659.95
    $3,659.95 - $3,659.95
    $3,659.95
  • Quest Dual 155 Overhead Dehumidifier | 155 Pints/Day | 110-120V - LED Grow Lights Depot
    $3,234.95 - $3,234.95
    $3,234.95
    $3,234.95 - $3,234.95
    $3,234.95

    Quest Dual 155 Overhead Dehumidifier | 155 Pints/Day | 110-120V

    QUEST DUAL 155 OVERHEAD SERIES @ 80 F | 60% RH Capacity 155 Pints/Day Efficiency 8.5 Pints/kWh Supply Voltage 110-120V Current Draw 6.9 A...

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    $3,234.95 - $3,234.95
    $3,234.95
    $3,234.95 - $3,234.95
    $3,234.95
  • Quest Hi-E Dry 195 Portable Dehumidifier | 195 Pints/Day | 110-120V - LED Grow Lights Depot
    $3,999.95 - $3,999.95
    $3,999.95
    $3,999.95 - $3,999.95
    $3,999.95

    Quest Hi-E Dry 195 Portable Dehumidifier | 195 Pints/Day | 110-120V

    Quest Hi-E Dry 195 Portable Dehumidifier @ 80 F / 60% RH Capacity 195 Pints/Day Efficiency 6.1 Pints/kWh Supply Voltage 115V Current Draw ...

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    $3,999.95 - $3,999.95
    $3,999.95
    $3,999.95 - $3,999.95
    $3,999.95
  • Quest DEH 3000R Control - LED Grow Lights Depot
    $399.00 - $399.00
    $399.00
    $399.00 - $399.00
    $399.00

    Quest DEH 3000R Control

    Accurate Readings, Easy Interface Quest DEH 3000R remote wall mounted digital control for Quest ventilating dehumidifiers. Features fan/filter oper...

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    $399.00 - $399.00
    $399.00
    $399.00 - $399.00
    $399.00
  • Quest Dual 110/150 MERV-8 Replacement Filter - LED Grow Lights Depot
    $26.00 - $26.00
    $26.00
    $26.00 - $26.00
    $26.00

    Quest Dual 110/150 MERV-8 Replacement Filter

    QUEST MERV 8 STANDARD PLEAT FILTER – 17.5″ X 14″ X 1.75″ MERV-8 filter that measures 17.5″ X 14″ X 1.75″ Fits Quest Dual 110 and 150 Dehumidifiers.

    $26.00 - $26.00
    $26.00
    $26.00 - $26.00
    $26.00
  • Quest 506 Exhaust Duct Kit - LED Grow Lights Depot
    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00

    Quest 506 Exhaust Duct Kit

    QUEST EXHAUST DUCT KIT FOR QUEST 506 AND 506 277V The Exhaust Duct Kit allows duct work to be attached to the intake on the Quest 506 Dehumidifier....

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    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00
  • Quest 506 Intake Duct Kit - LED Grow Lights Depot
    $750.00 - $750.00
    $750.00
    $750.00 - $750.00
    $750.00

    Quest 506 Intake Duct Kit

    INTAKE DUCT KIT FOR QUEST 506, 506 277V, 746 480V, 876 AND 706 50-HZ The Intake Duct Kit allows ductwork to be attached to the intake on the Quest ...

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    $750.00 - $750.00
    $750.00
    $750.00 - $750.00
    $750.00
  • Quest Dual 110/150 Supply Duct Kit - LED Grow Lights Depot
    $139.00 - $139.00
    $139.00
    $139.00 - $139.00
    $139.00

    Quest Dual 110/150 Supply Duct Kit

    SUPPLY DUCT KIT FOR QUEST DUAL 110 AND 150 The Supply Duct Kit allows a limited amount of duct work to be attached to the intake on Quest Dual 110 ...

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    $139.00 - $139.00
    $139.00
    $139.00 - $139.00
    $139.00
  • Quest Condensate Pump - LED Grow Lights Depot
    $175.00 - $175.00
    $175.00
    $175.00 - $175.00
    $175.00

    Quest Condensate Pump

    Overcoming Gravity Humidity can happen anywhere–not just next to a floor drain. Gain flexibility in where you install your dehumidifier with the T...

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    $175.00 - $175.00
    $175.00
    $175.00 - $175.00
    $175.00
  • Quest 100 Dehumidifier | 100 Pints/Day | 110-120V - LED Grow Lights Depot
    $2,269.95 - $2,269.95
    $2,269.95
    $2,269.95 - $2,269.95
    $2,269.95

    Quest 100 Dehumidifier | 100 Pints/Day | 110-120V

    Quest 100 Dehumidifier 80°F | 60 %RH Capacity 100 Pints/Day Efficiency 7.5 Pints/kWh Supply Voltage 110-120V, 60 Hz Current Draw 5 Amps ...

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    $2,269.95 - $2,269.95
    $2,269.95
    $2,269.95 - $2,269.95
    $2,269.95

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