Which models does this kit fit?

It fits the Quest Dual 105, 155, 165, 205, and 225 dehumidifiers, plus the Quest 155 50-Hz variant. That covers the full Dual model range and one related unit.

What does this kit do?

It lets the dehumidifier draw return air from a different room or an out-of-sight space, rather than pulling air only from the room where the unit sits. That's useful when the dehumidifier serves more than one connected space.

It connects to the duct collar already built into the unit, so no modification to the dehumidifier is required. Setup follows the same process across every compatible model.

Does this kit include the supply side too?

No, this kit handles return air only. A matching supply duct kit is available separately for routing supply air to another room.

Home/Cultivation Equipment and Supplies/Environment/Ventilation & Ducts/Quest Return Duct Kit for Quest Dual 105, 155, 165, 205, 225, and 185 COOL

Quest Return Duct Kit for Quest Dual 105, 155, 165, 205, 225, and 185 COOL

Name: Quest Return Duct Kit for Quest Dual 105, 155, 165, 205, 225, and 185 COOL
Brand: Quest
SKU: QST4028610
Price: 133 USD
Availability: OutOfStock

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QST4028610

$133.00

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Description
Features
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Return Duct Kit for Quest Dual 105 Through 225 Dehumidifiers

Pulling return air from the same room a dehumidifier sits in works for a single space, but larger facilities often need to draw air from an adjoining room instead. This return duct kit attaches to the existing duct collar on the Quest Dual 105, 155, 165, 205, and 225 dehumidifiers, letting the unit pull return air from that separate space.

It also fits the Quest 155 50-Hz variant, extending coverage to that related unit.

Key Features & Benefits

Uses the Factory Duct Collar — installs without modifying the dehumidifier.
Pulls Return Air From Elsewhere — draws air from another room or space.
Covers the Full Dual Range — fits the 105-225 lineup plus the 155 50-Hz unit.
Straightforward Installation — designed for a direct, tool-light fit.

Who Should Use This Quest Return Duct Kit

Owners of a compatible Quest Dual dehumidifier, or the 155 50-Hz unit, who need to pull return air from a separate room or space.

About Quest

Therma-Stor LLC, based in Madison, Wisconsin, builds Quest dehumidifiers along with its sister brand Anden, targeting commercial and industrial moisture control. Quest dehumidifiers recapture heat generated during dehumidification using patented M-CoRR multi-coil technology, a design built for indoor cultivation, food production, and other demanding facilities.

Frequently Asked Questions

Which models does this kit fit?: It fits the Quest Dual 105, 155, 165, 205, and 225 dehumidifiers, plus the Quest 155 50-Hz variant. That covers the full Dual model range and one related unit.
What does this kit do?: It lets the dehumidifier draw return air from a different room or an out-of-sight space, rather than pulling air only from the room where the unit sits. That's useful when the dehumidifier serves more than one connected space.
How is it installed?: It connects to the duct collar already built into the unit, so no modification to the dehumidifier is required. Setup follows the same process across every compatible model.
Does this kit include the supply side too?: No, this kit handles return air only. A matching supply duct kit is available separately for routing supply air to another room.

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