Skip to content

Quest New 335 208/230V Dehumidifier – M-CoRR™ Technology, 345 PPD High-Efficiency Unit

by Quest
Save $200.05
Original Price $5,900.00
Current Price $5,699.95

Notify me when back in stock

Icon

Free Shipping

On All Orders

Icon

Lowest Price

Guaranteed or We’ll Match It

Icon

No Sales Tax

No Sales Tax—Except in Michigan

Icon

Easy Returns

Always hassle free

Icon

Call Us

(844) 873-5764

Description

Energy-Efficient Commercial Dehumidifier for Grow Rooms & Industrial Environments.

Take full control of your growing environment with this powerful dehumidifier. Designed for high-moisture commercial spaces like indoor farms and industrial facilities, the Quest 335 combines patented M-CoRR™ coil technology with MERV 13 filtration and digital controls to deliver maximum water removal with minimal power usage. Its flexible voltage range, compact design, and California Title 24 compliance make it one of the most cost-effective, environmentally friendly dehumidifiers available.


✅ Quick-Glance Benefits

⚙️ M-CoRR™ Coil System Recycles excess heat to reduce BTUs and boost dehumidification efficiency.
🔌 208/230V Flex Power Operates on common voltages with ultra-low amp draw for reduced energy loads.
🧪 MERV 13 Filtration Captures airborne contaminants with 65% more efficiency than MERV-8 filters.
🌱 Eco-Conscious Refrigerant R454B refrigerant offers 78% lower GWP than older models—better for your grow and the planet.
🚚 Fast, Free U.S. Shipping Delivered promptly and securely from our domestic warehouse network.



What’s Included

1x Quest 335 208/230V Dehumidifier
1x 6′ Power Cord (NEMA 6-15P)
1x Digital Control Panel with Terminal Block
1x User Manual


Use It For

✔️ Indoor Agriculture
✔️ High-Humidity Industrial Facilities
✔️ Overhead or Freestanding Installations
✔️ Environments Requiring Title 24 Compliance


🔍 Standout Features

Quest New 335 208/230V Dehumidifier features
🌡️ Widest Operating Range Performs from 56°F to 95°F across a broad range of humidity conditions.
🔄 Auto Restart Recovers settings after outages automatically—no reset required.
📉 Industry-Leading Efficiency Delivers 345 pints/day with just 1,700W — saving energy and reducing HVAC strain.


Ready to upgrade your grow setup?

Order the Quest 335 208/230V Dehumidifier today and take full control of your growing environment — with smarter automation and reliable results.


Installation Options 

Freestanding Unit 

Quest New 335 208/230V Dehumidifier freestanding

Can be mounted overhead with use of 3/8″ Threaded Rod

Quest New 335 208/230V Dehumidifier hanging

P-Trap Requirements

Quest New 335 208/230V Dehumidifier p- trap


Quest 335 208/230V Dehumidifier Specifications

@ 80 F | 60% RH

Water Removal

345 Pints/Day

Efficiency

8.0 Pints/kWh

Energy Factor

3.8 Liters/kWh

Current Draw

8.4A @208V / 7.6A @230V

Power

1,700 Watts

BTU (Total)

21,500

BTU (Heat of Condensation)

15,700

BTU (Motor Load)

5,800

@ 75 F | 50% RH

Water Removal

221 Pints/Day

Efficiency

6 Pints/kWh

Energy Factor

2.8 Liters/kWh

California title 24 compliant @ 208V / 230V

Non-Ducted Energy Factor

6.2 Pints/kWh @ 65 F | 60% RH

Ducted Energy Factor

7.4 Pints/kWh @ 73 F | 60% RH

Part Number

4046200

Dehumidifier Type

Refrigerant Dehumidifier

CFM

900

Operating Temperature

56 F Min–95 F Max

Supply Voltage

208–230 VAC, 1 Phase, 60 Hz

Unit Dimensions

32.9″ L x 24.6″ W x 23.7″ H

Unit Weight

215 lb

Control Type

Onboard digital controls with low voltage terminal block

Air Filter MERV Rating

MERV 13

Air Filter Dimensions

20″ x 22″ x 2″

Power Cord

14ga NEMA 6-15P (6′)

Refrigerant Type

R454B

Refrigerant Amount

3 lb 8 oz

Drain Port Connection

3/4″ Threaded NPT

Fans

Variable Speed EC Motor

Warranty

5 Year Limited


Quest 335 208/230V Dehumidifier User Manual

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Spec Sheet 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Indoor Farming Brochure 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Industrial Refrigeration Brochure 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Quick Start Guide 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control User Manual


Quest 335 208/230V Dehumidifier Warranty

Manufacturer Warranty: 5 Years
Covers defects in materials and workmanship
Support handled directly through manufacturer or via our team


FAQ

Q: What’s the difference between the 208/230V and 277V versions?
A: The voltage input — this version supports flexible standard commercial voltages for easier integration.

Q: Can it be installed overhead?
A: Yes — it features integrated handles and a low-profile form factor for easy overhead mounting.

Q: What makes this unit so energy-efficient?
A: The patented M-CoRR™ multi-coil design reuses heat, lowers BTUs, and improves performance per watt.

Q: Is it California Title 24 compliant?
A: Yes — it meets ducted and non-ducted energy factor requirements.

Q: What’s the warranty?
A: It comes with a 5-year limited manufacturer warranty.

Why Buy From US

Who We Are

At Garden GrowShop, we're not a faceless online retailer. We're a small, family-run business with real roots in the growing community. Every product we carry has been carefully chosen to meet the needs of both home growers and commercial operators — because we’ve walked in your shoes.

Personal, Knowledgeable Support
When you reach out to us, you’re not getting a canned reply or being passed between departments. You're talking to someone who actually knows the products, understands your challenges, and is here to help you succeed.

Transparent Pricing — No Gimmicks
We believe in fair, honest pricing. No inflated markups, no bait-and-switch tactics. If you ever find a better price on the same item, let us know — we’ll match it without the hassle.

Fast, Dependable Shipping
We ship directly from warehouses across the U.S. to get your order to you quickly and reliably. No inflated delivery timelines, and no surprise shipping fees — just smooth, on-time delivery you can count on.

A Partnership, Not a Transaction
Our customers stick with us because we treat them like partners. Whether you're outfitting a small indoor setup or managing a large-scale operation, we’re here to grow with you — not just sell you equipment.

Our Commitment
If something goes wrong, we don’t pass the buck. We work with you directly to make it right. That’s how we’ve built our business, and that’s how we plan to keep it.

Shipping/ Returns

Shipping Policy

Free Shipping Within the Continental U.S.
We offer free shipping on all orders shipped to addresses within the continental United States. There are no hidden fees, minimum order requirements, or handling charges. The price you see at checkout is the final price you pay.

Order Processing
Orders are typically processed within 1–2 business days (Monday–Friday). If an item is temporarily backordered or delayed, we’ll notify you by email with an updated shipping estimate.

Shipping Confirmation & Tracking
Once your order has shipped, we’ll email you a shipping confirmation that includes tracking information. You can use this to monitor the delivery status of your package in real time.

Estimated Delivery Time
Most orders arrive within 3–7 business days of shipping, depending on your location and the item’s warehouse origin. Freight items and oversized packages may take additional time.

Shipping Carriers
We use trusted carriers such as FedEx, UPS, USPS, and professional freight delivery services for large or heavy items. Depending on the size of your order, it may arrive in multiple packages or from multiple warehouses.

Delivery and Moving Disclaimer
Please note: We do not offer moving or installation services. For freight shipments or large items, carriers are only responsible for curbside delivery. Drivers are not required to move items inside your home, up stairs, or to specific locations. We strongly recommend having assistance available at the time of delivery for heavy or bulky shipments.

Address Accuracy & Order Changes
Please ensure your shipping address is correct at the time of checkout. Once an order has shipped, we are unable to change the delivery address or reroute the shipment. If you need to make changes to your order, contact us immediately after placing it.

Damaged or Lost Shipments
If your order arrives damaged or appears to be lost in transit, contact us within 48 hours of delivery (or expected delivery). We will work with the carrier to resolve the issue as quickly as possible.

Shipping Restrictions
We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.

Questions?
If you have questions about your order, delivery, or shipping process, feel free to reach out to us through our Contact Us page or via email. We’re here to help.

Start of Returns section 

Easy Returns, No Surprises

At Garden GrowShop, we stand behind the quality of every product we carry. But we also understand that sometimes things just don’t work out — and that’s okay. If you change your mind or the item isn’t quite what you expected, we’ve got you covered.

30-Day Return Guarantee

You have 30 days from the date of delivery to request a return for any reason. To start a return, simply email us at sales@gardengrowshop.com with your order number and we’ll walk you through the process.

Here’s what to expect:

  • You’ll receive clear return instructions from our team.

  • Once your item is received and inspected, we’ll issue a refund to your original payment method.

  • Items must be returned in “like new” condition, with all original packaging and accessories.

  • Return shipping costs are the responsibility of the customer.

“Like new” means no visible wear, damage, or missing parts. Items showing signs of use or misuse may not qualify for a refund.


Damaged or Defective Orders

If your order arrives damaged or defective, don’t worry — we’ll take care of it.

Here’s what to do:

  • Note any damage with the delivery driver when signing for the package.

  • Email photos and a description of the issue to sales@gardengrowshop.com on the same day you receive it.

  • We’ll cover the cost of return shipping and make sure a replacement is sent out quickly.

Please keep all original packaging in case a return is needed. This helps speed up the process and ensures a smooth resolution.


Order Cancellations

If you need to cancel your order, please contact us as soon as possible at sales@gardengrowshop.com or by phone.

  • Cancellations before shipment receive a full refund.

  • Cancellations after shipment will follow our standard return policy and may be subject to return shipping costs.


Important Return Notes:

  • Certain products may have brand-specific return restrictions, which will be noted on the product page.

  • Products purchased for temporary or single-use purposes (e.g. trade shows, promotional events) are not eligible for return.


We’re Here to Help

Our goal is to make returns and exchanges as easy as possible — with no stress and no surprises. If you’re unsure whether your order qualifies or just want to ask a question, don’t hesitate to reach out. We’re here to make sure you feel confident before and after your purchase.

Why Garden GrowShop?

We’re an authorized dealer for every brand we sell—so you’ll always get full manufacturer warranties, premium support, and authentic gear direct from the source.

✅ Fast, tracked shipping on all orders
✅ 100% safe and secure checkout
✅ No restocking fees on returns
✅ Friendly U.S.-based support when you need it

Have questions? We're here to help. Whether you're just getting started or scaling up a full grow, our experts can guide you to the right gear.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Description

Energy-Efficient Commercial Dehumidifier for Grow Rooms & Industrial Environments.

Take full control of your growing environment with this powerful dehumidifier. Designed for high-moisture commercial spaces like indoor farms and industrial facilities, the Quest 335 combines patented M-CoRR™ coil technology with MERV 13 filtration and digital controls to deliver maximum water removal with minimal power usage. Its flexible voltage range, compact design, and California Title 24 compliance make it one of the most cost-effective, environmentally friendly dehumidifiers available.


✅ Quick-Glance Benefits

⚙️ M-CoRR™ Coil System Recycles excess heat to reduce BTUs and boost dehumidification efficiency.
🔌 208/230V Flex Power Operates on common voltages with ultra-low amp draw for reduced energy loads.
🧪 MERV 13 Filtration Captures airborne contaminants with 65% more efficiency than MERV-8 filters.
🌱 Eco-Conscious Refrigerant R454B refrigerant offers 78% lower GWP than older models—better for your grow and the planet.
🚚 Fast, Free U.S. Shipping Delivered promptly and securely from our domestic warehouse network.



What’s Included

1x Quest 335 208/230V Dehumidifier
1x 6′ Power Cord (NEMA 6-15P)
1x Digital Control Panel with Terminal Block
1x User Manual


Use It For

✔️ Indoor Agriculture
✔️ High-Humidity Industrial Facilities
✔️ Overhead or Freestanding Installations
✔️ Environments Requiring Title 24 Compliance


🔍 Standout Features

Quest New 335 208/230V Dehumidifier features
🌡️ Widest Operating Range Performs from 56°F to 95°F across a broad range of humidity conditions.
🔄 Auto Restart Recovers settings after outages automatically—no reset required.
📉 Industry-Leading Efficiency Delivers 345 pints/day with just 1,700W — saving energy and reducing HVAC strain.


Ready to upgrade your grow setup?

Order the Quest 335 208/230V Dehumidifier today and take full control of your growing environment — with smarter automation and reliable results.


Installation Options 

Freestanding Unit 

Quest New 335 208/230V Dehumidifier freestanding

Can be mounted overhead with use of 3/8″ Threaded Rod

Quest New 335 208/230V Dehumidifier hanging

P-Trap Requirements

Quest New 335 208/230V Dehumidifier p- trap


Quest 335 208/230V Dehumidifier Specifications

@ 80 F | 60% RH

Water Removal

345 Pints/Day

Efficiency

8.0 Pints/kWh

Energy Factor

3.8 Liters/kWh

Current Draw

8.4A @208V / 7.6A @230V

Power

1,700 Watts

BTU (Total)

21,500

BTU (Heat of Condensation)

15,700

BTU (Motor Load)

5,800

@ 75 F | 50% RH

Water Removal

221 Pints/Day

Efficiency

6 Pints/kWh

Energy Factor

2.8 Liters/kWh

California title 24 compliant @ 208V / 230V

Non-Ducted Energy Factor

6.2 Pints/kWh @ 65 F | 60% RH

Ducted Energy Factor

7.4 Pints/kWh @ 73 F | 60% RH

Part Number

4046200

Dehumidifier Type

Refrigerant Dehumidifier

CFM

900

Operating Temperature

56 F Min–95 F Max

Supply Voltage

208–230 VAC, 1 Phase, 60 Hz

Unit Dimensions

32.9″ L x 24.6″ W x 23.7″ H

Unit Weight

215 lb

Control Type

Onboard digital controls with low voltage terminal block

Air Filter MERV Rating

MERV 13

Air Filter Dimensions

20″ x 22″ x 2″

Power Cord

14ga NEMA 6-15P (6′)

Refrigerant Type

R454B

Refrigerant Amount

3 lb 8 oz

Drain Port Connection

3/4″ Threaded NPT

Fans

Variable Speed EC Motor

Warranty

5 Year Limited


Quest 335 208/230V Dehumidifier User Manual

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Spec Sheet 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Indoor Farming Brochure 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Industrial Refrigeration Brochure 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control Quick Start Guide 

Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control User Manual


Quest 335 208/230V Dehumidifier Warranty

Manufacturer Warranty: 5 Years
Covers defects in materials and workmanship
Support handled directly through manufacturer or via our team


FAQ

Q: What’s the difference between the 208/230V and 277V versions?
A: The voltage input — this version supports flexible standard commercial voltages for easier integration.

Q: Can it be installed overhead?
A: Yes — it features integrated handles and a low-profile form factor for easy overhead mounting.

Q: What makes this unit so energy-efficient?
A: The patented M-CoRR™ multi-coil design reuses heat, lowers BTUs, and improves performance per watt.

Q: Is it California Title 24 compliant?
A: Yes — it meets ducted and non-ducted energy factor requirements.

Q: What’s the warranty?
A: It comes with a 5-year limited manufacturer warranty.

Why Buy From US

Who We Are

At Garden GrowShop, we're not a faceless online retailer. We're a small, family-run business with real roots in the growing community. Every product we carry has been carefully chosen to meet the needs of both home growers and commercial operators — because we’ve walked in your shoes.

Personal, Knowledgeable Support
When you reach out to us, you’re not getting a canned reply or being passed between departments. You're talking to someone who actually knows the products, understands your challenges, and is here to help you succeed.

Transparent Pricing — No Gimmicks
We believe in fair, honest pricing. No inflated markups, no bait-and-switch tactics. If you ever find a better price on the same item, let us know — we’ll match it without the hassle.

Fast, Dependable Shipping
We ship directly from warehouses across the U.S. to get your order to you quickly and reliably. No inflated delivery timelines, and no surprise shipping fees — just smooth, on-time delivery you can count on.

A Partnership, Not a Transaction
Our customers stick with us because we treat them like partners. Whether you're outfitting a small indoor setup or managing a large-scale operation, we’re here to grow with you — not just sell you equipment.

Our Commitment
If something goes wrong, we don’t pass the buck. We work with you directly to make it right. That’s how we’ve built our business, and that’s how we plan to keep it.

Shipping/ Returns

Shipping Policy

Free Shipping Within the Continental U.S.
We offer free shipping on all orders shipped to addresses within the continental United States. There are no hidden fees, minimum order requirements, or handling charges. The price you see at checkout is the final price you pay.

Order Processing
Orders are typically processed within 1–2 business days (Monday–Friday). If an item is temporarily backordered or delayed, we’ll notify you by email with an updated shipping estimate.

Shipping Confirmation & Tracking
Once your order has shipped, we’ll email you a shipping confirmation that includes tracking information. You can use this to monitor the delivery status of your package in real time.

Estimated Delivery Time
Most orders arrive within 3–7 business days of shipping, depending on your location and the item’s warehouse origin. Freight items and oversized packages may take additional time.

Shipping Carriers
We use trusted carriers such as FedEx, UPS, USPS, and professional freight delivery services for large or heavy items. Depending on the size of your order, it may arrive in multiple packages or from multiple warehouses.

Delivery and Moving Disclaimer
Please note: We do not offer moving or installation services. For freight shipments or large items, carriers are only responsible for curbside delivery. Drivers are not required to move items inside your home, up stairs, or to specific locations. We strongly recommend having assistance available at the time of delivery for heavy or bulky shipments.

Address Accuracy & Order Changes
Please ensure your shipping address is correct at the time of checkout. Once an order has shipped, we are unable to change the delivery address or reroute the shipment. If you need to make changes to your order, contact us immediately after placing it.

Damaged or Lost Shipments
If your order arrives damaged or appears to be lost in transit, contact us within 48 hours of delivery (or expected delivery). We will work with the carrier to resolve the issue as quickly as possible.

Shipping Restrictions
We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.

Questions?
If you have questions about your order, delivery, or shipping process, feel free to reach out to us through our Contact Us page or via email. We’re here to help.

Start of Returns section 

Easy Returns, No Surprises

At Garden GrowShop, we stand behind the quality of every product we carry. But we also understand that sometimes things just don’t work out — and that’s okay. If you change your mind or the item isn’t quite what you expected, we’ve got you covered.

30-Day Return Guarantee

You have 30 days from the date of delivery to request a return for any reason. To start a return, simply email us at sales@gardengrowshop.com with your order number and we’ll walk you through the process.

Here’s what to expect:

  • You’ll receive clear return instructions from our team.

  • Once your item is received and inspected, we’ll issue a refund to your original payment method.

  • Items must be returned in “like new” condition, with all original packaging and accessories.

  • Return shipping costs are the responsibility of the customer.

“Like new” means no visible wear, damage, or missing parts. Items showing signs of use or misuse may not qualify for a refund.


Damaged or Defective Orders

If your order arrives damaged or defective, don’t worry — we’ll take care of it.

Here’s what to do:

  • Note any damage with the delivery driver when signing for the package.

  • Email photos and a description of the issue to sales@gardengrowshop.com on the same day you receive it.

  • We’ll cover the cost of return shipping and make sure a replacement is sent out quickly.

Please keep all original packaging in case a return is needed. This helps speed up the process and ensures a smooth resolution.


Order Cancellations

If you need to cancel your order, please contact us as soon as possible at sales@gardengrowshop.com or by phone.

  • Cancellations before shipment receive a full refund.

  • Cancellations after shipment will follow our standard return policy and may be subject to return shipping costs.


Important Return Notes:

  • Certain products may have brand-specific return restrictions, which will be noted on the product page.

  • Products purchased for temporary or single-use purposes (e.g. trade shows, promotional events) are not eligible for return.


We’re Here to Help

Our goal is to make returns and exchanges as easy as possible — with no stress and no surprises. If you’re unsure whether your order qualifies or just want to ask a question, don’t hesitate to reach out. We’re here to make sure you feel confident before and after your purchase.

Why Garden GrowShop?

We’re an authorized dealer for every brand we sell—so you’ll always get full manufacturer warranties, premium support, and authentic gear direct from the source.

✅ Fast, tracked shipping on all orders
✅ 100% safe and secure checkout
✅ No restocking fees on returns
✅ Friendly U.S.-based support when you need it

Have questions? We're here to help. Whether you're just getting started or scaling up a full grow, our experts can guide you to the right gear.