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White Quest dehumidifier with digital control panel and filter.
White Quest dehumidifier with M-CORR technology and a gray filter on a white background.
White Quest dehumidifier with digital control panel and filter.
White Quest dehumidifier with M-CORR technology and a gray filter on a white background.

Quest 335 208/230V High Efficiency Dehumidifier — 350 Pints/Day

Official Quest Dealer Model: 4046200
$5,799.95 USD$5,599.00 USD$5,799.95 USD
 $5,799.95 USD
starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
Looking to finance equipment under your corporation? Learn more about Business Financing
  • Removes up to 345 pints of moisture per day at an efficiency of 8.0 pints per kWh
  • Patented M-CoRR technology recycles heat to lower BTU output and save energy
  • Uses 208/230V single-phase power with a standard NEMA 6-15P plug for easy setup
  • 5-year limited warranty
  • View More Details
Order today, ships between June 22 - July 6, 2026

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REBATE PROGRAM

Commercial Rebate Program

Licensed operations may qualify for up to a 60% rebate on qualifying equipment.

Rebate & Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are upgrading to high-efficiency moisture removal because your current units put out too much heat for your HVAC.
  • You are scaling up your humidity control because smaller units can no longer keep up with your growing plant canopy.
  • You are seeking consistent airflow because your current filters clog and cause humidity spikes before you can swap them.

What We Found

  • The heat recycling on this unit is real and keeps your room much cooler than older 300 plus pint models.
  • We noticed the fan actually ramps up as the filter gets dirty to keep that 900 CFM steady until you can swap it.

What Users Say

  • Facility managers report fewer crop health issues after switching to the MERV 13 filters that trap finer particles.
  • Users who swapped from hardwired units say the NEMA 6-15P plug made their initial facility setup much faster.

Quest 335 208/230V High-Efficiency Dehumidifier | 345 Pints Per Day Commercial Control

The Quest 335 removes 345 pints of moisture per day to maintain precise humidity levels in large scale cultivation facilities. This industrial dehumidifier utilizes patented multi-coil technology to achieve an efficiency rating of 8.2 pints per kWh. Commercial growers use this unit to manage transpiration rates while minimizing the electrical load and heat rejection in the grow room.

Quest 335 208/230V High-Efficiency Dehumidifier in use
345Pints/DayWater removal capacity
8.2Pints/kWhEnergy efficiency
900CFMTotal air flow
8.4AmpsCurrent draw at 208V

Features

Multi-Coil Technology

This patented design maximizes heat exchange efficiency to provide the highest water removal rates per kilowatt in the industry.

MERV 13 Filtration

The superior filtration system captures 65% more harmful airborne contaminants than standard MERV 8 filters to protect crop health.

Variable Speed EC Motor

The electronically commutated motor adjusts fan speed dynamically to maintain optimal airflow while reducing overall power consumption.

Digital Control Interface

Onboard digital controls include a low voltage terminal block for seamless integration with external environmental controllers.

Auto Restart Function

The system automatically restores all previous settings following a power outage to ensure uninterrupted humidity management.

Safe Refrigerant Choice

The unit uses R454B refrigerant, which features a 78% lower global warming potential than traditional refrigerant types.

In Detail

Quest 335 208/230V High-Efficiency Dehumidifier in use

The Quest 335 provides high capacity moisture extraction while maintaining one of the lowest amp draws in the commercial market. This efficiency allows facility managers to allocate more power to lighting and climate control systems without overloading the electrical infrastructure. The unit is designed for versatile installation, supporting both overhead suspension to save floor space and freestanding ground placement. Its variable speed EC motor operates quietly and effectively across a wide temperature range of 56 F to 95 F.

  • Removes 345 pints per day at 80 F and 60% relative humidity.
  • Achieves 8.2 pints per kWh for significant operational cost savings.
  • Standard MERV 13 filtration protects coils and improves air quality.
  • California Title 24 compliant for high-efficiency commercial standards.
  • Integrated handles and 6 foot power cord simplify installation.

Compare the Quest Line

Capacity
Efficiency
Voltage
Best For
Quest 100Quest 100
100 Pints/Day
7.5 Pints/kWh
120V
Small grow rooms and boutique drying spaces.
Quest Hi-E Dry 140Hi-E Dry 140
135 Pints/Day
7.2 Pints/kWh
110–120 VAC, 1 Phase, 60 Hz
Portable humidity control for multi-room facilities.
Quest 155Quest 155
155 Pints/Day
8.5 Pints/kWh
110-120 VAC, 1 Phase, 60 Hz
High efficiency for mid-sized commercial rooms.
Quest Hi-E Dry 195Hi-E Dry 195
195 Pints/Day
5.4 Pints/kWh
115 VAC
High-capacity portable use in demanding environments.
Quest 225Quest 225
225 Pints/Day
7.6 Pints/kWh
208-230V
Next-gen efficiency for professional flower rooms.
Quest 335Quest 335You're viewing
345 Pints/Day
8.2 Pints/kWh
208-230V
Large scale commercial facilities requiring low heat.
Quest 335 277VQuest 335 277V
345 Pints/Day
8.0 Pints/kWh
277V
Industrial facilities with 277V power infrastructure.
Quest 506Quest 506
500 Pints/Day
9.2 Pints/kWh
208V-230V
High-capacity moisture removal for massive canopies.
Quest 506 277VQuest 506 277V
500 Pints/Day
9.2 Pints/kWh
277V
Commercial greenhouses and industrial grow sites.
Quest 746Quest 746
746 Pints/Day
7.3 Pints/kWh
480V
Maximum capacity for large industrial operations.

Technical Specifications

PERFORMANCE
Water Removal @ 80 F | 60% RH345 Pints/Day
Efficiency @ 80 F | 60% RH8.2 Pints/kWh
Energy Factor @ 80 F | 60% RH3.8 Liters/kWh
Water Removal @ 75 F | 50% RH221 Pints/Day
Efficiency @ 75 F | 50% RH6 Pints/kWh
Energy Factor @ 75 F | 50% RH2.8 Liters/kWh
Non-Ducted Energy Factor6.2 Pints/kWh @ 65 F | 60% RH
Ducted Energy Factor7.4 Pints/kWh @ 73 F | 60% RH
CFM900
ELECTRICAL
Supply Voltage208–230 VAC, 1 Phase, 60 Hz
Current Draw8.4A @208V / 7.6A @230V
Power1,700 Watts
Power Cord14ga NEMA 6-15P (6′)
THERMAL DATA
BTU (Total)21,500
BTU (Heat of Condensation)15,700
BTU (Motor Load)5,800
PHYSICAL & MECHANICAL
Unit Dimensions32.9″ L x 24.6″ W x 23.7″ H
Unit Weight215 lb
Operating Temperature56 F Min–95 F Max
Air Filter MERV RatingMERV 13
Air Filter Dimensions20″ x 22″ x 2″
Refrigerant TypeR454B
Refrigerant Amount3 lb 8 oz
Drain Port Connection3/4″ Threaded NPT
FansVariable Speed EC Motor
Control TypeOnboard digital controls with low voltage terminal block
Part Number4046200

Warranty

The Quest 335 is backed by a 5-year limited warranty covering the unit and its components. This coverage ensures long term reliability in commercial cultivation environments where equipment operates continuously. Trimleaf is an authorized Quest retailer; this unit ships with the full manufacturer warranty, valid for the original purchaser.

Frequently Asked Questions

What type of power outlet is required for this unit?

The Quest 335 uses a NEMA 6-15P plug and requires a 208-230V single-phase circuit. It is not compatible with standard 120V household outlets.

Can this dehumidifier be mounted to the ceiling?

Yes, the unit features overhead placement options to save floor space. It includes integrated handles to assist with positioning during installation.

How often should the MERV 13 filter be replaced?

Filter lifespan depends on the dust and particulate levels in your facility. We recommend checking the 20 x 22 x 2 inch filter every 3 to 6 months to maintain optimal airflow and protect the coils.

Does the unit restart automatically after a power failure?

The auto-restart function ensures the unit returns to its previous settings immediately when power is restored. This prevents humidity spikes during unattended operation.

Can I connect this to my existing environmental controller?

The onboard digital controls include a low voltage terminal block for external control. This allows for seamless integration with most commercial grow room automation systems.

How much heat does this unit add to the room?

The unit generates a total of 21,500 BTUs. Its high efficiency and low amp draw help minimize the heat load compared to less efficient models with similar water removal capacity.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
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Over 1,900 Verified Reviews
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