Quest 70 Supply/Return Duct Kit

The Quest 70 Supply/Return Duct Kit is a purpose-built ducting accessory for the Quest 70 Pint Dehumidifier. The kit includes two 8-inch duct collars that attach securely to the unit and a flange plate, enabling growers to duct conditioned air directly into or out of their grow space rather than dumping it into an open room.

Quest 70 Supply/Return Duct Kit Specifications

The following specifications are drawn from the canonical product data for the Quest 70 Supply/Return Duct Kit.

Why Choose the Quest 70 Supply/Return Duct Kit

When a dehumidifier exhausts into an open room, humidity and heat can redistribute unevenly, reducing the unit’s effectiveness. Ducting the supply and return air streams lets you direct conditioned air precisely where it is needed. Here is what this kit provides:

• Model-specific fit: Designed specifically for the Quest 70 Pint Dehumidifier, the two 8-inch duct collars attach securely and seal the unit, preventing air bypassing between the collar and the chassis.
• Complete hardware in one package: The kit ships with both the supply and return duct collars plus a flange plate, so you have everything required to connect standard 8-inch flex or rigid duct without sourcing additional parts.
• Improved humidity control: Ducting supply and return air allows the dehumidifier to draw humid air from a specific zone and discharge drier air to another zone, which is a more controlled approach than open-room operation.
• Secure, sealed attachment: The collars are designed to attach securely and seal the unit, reducing air leakage that would otherwise diminish moisture removal performance.

Best Uses for the Quest 70 Supply/Return Duct Kit

This kit is appropriate whenever the Quest 70 Pint Dehumidifier is installed in a configuration that requires directional air management rather than free-discharge operation. Common applications include:

• Enclosed grow tents and rooms: Run a duct collar on the return port to draw humid air from the canopy level, and run the supply collar to discharge drier air at a different height or to an adjacent space.
• Multi-zone grow facilities: Where a dehumidifier is centrally located but needs to condition air in a room that is not directly adjacent, ducting allows the unit to serve a remote area through insulated flex duct.
• Sealed room cultivation: In fully sealed grow environments with CO2 supplementation, precise humidity management requires ducted supply and return rather than open discharge to avoid disturbing CO2 stratification.
• Basement and crawl space grows: When the Quest 70 is installed outside the grow space itself, this duct kit lets you pipe conditioned air in and return humid air back to the unit without placing the dehumidifier inside the canopy.
• Retrofit installations: If you already own a Quest 70 and are expanding or reconfiguring your grow space to require ducted air management, this kit adds that capability without replacing the dehumidifier itself.

If you are also managing airflow with a fan, consider pairing the Quest 70 with an Active Air HD pedestal fan to help distribute conditioned air evenly across the canopy. For complete humidity management, replacing a failed condensate pump on an existing unit is also straightforward with the Ideal Air Pro Series dehumidifier replacement condensate pump.

Compatibility

The Quest 70 Supply/Return Duct Kit is designed for use exclusively with the Quest 70 Pint Dehumidifier. The two included duct collars are sized at 8 inches in diameter and are engineered to attach securely to the supply and return ports of that specific model. The flange plate is part of the mounting hardware for the same unit.

This kit is not a universal accessory. Quest produces separate duct kits for other models in its product line (such as the Quest Dual 105, 155, 165, 205, 225, and 185 COOL series), and those kits use different collar dimensions and mounting configurations. Verify the model number printed on your dehumidifier before ordering. Standard 8-inch flex duct or rigid duct is required to complete the installation and is not included in this kit.

Sources & Further Reading