Quest MERV 13 Filter 11in X 9in X 1in for Quest 70

Compact MERV 13 Filter for the Quest 70 Dehumidifier

Smaller dehumidifier installations still need consistent filtration to keep airflow and internal components clean, and the Quest 70's compact footprint calls for a filter sized to match. This MERV 13 replacement filter measures 11 x 9 x 1 inches, purpose-built for the Quest 70 line rather than trimmed down from a larger filter.

It's a direct fit for the Quest 70 (PN 4033750) and the Quest 70 50-Hz variant (PN 4033810), covering both versions of this compact unit.

Key Features & Benefits

• MERV 13 Rating — higher filtration efficiency than standard MERV grades.
• 11 x 9 x 1 Inch Size — purpose-built for the Quest 70's compact footprint.
• Fits Two Part Numbers — covers Quest 70 (PN 4033750) and Quest 70 50-Hz (PN 4033810).
• Keep a Spare on Hand — makes scheduled filter changes quicker.

Who Should Use the Quest 70 MERV 13 Filter

Owners of the Quest 70 or Quest 70 50-Hz dehumidifier who need a routine replacement filter sized 11 x 9 x 1 inches.

About Quest

Quest dehumidifiers are manufactured by Therma-Stor LLC of Madison, Wisconsin, the company that also produces the related Anden brand. Quest's overhead and portable units are built around patented M-CoRR multi-coil technology, which recycles heat pulled from the air during dehumidification for cultivation, food production, and other similarly demanding commercial and industrial settings.

Frequently Asked Questions

Which units does this filter fit?

It fits the Quest 70 (PN 4033750) and the Quest 70 50-Hz (PN 4033810). Both compact units use the same 11 x 9 x 1 inch filter size.

What size is this filter?

It measures 11 x 9 x 1 inches, sized specifically for the Quest 70 line rather than adapted from a larger filter. That compact footprint matches the unit's smaller intake opening.

How does MERV 13 compare to lower ratings?

MERV 13 captures a higher percentage of fine airborne particulate than lower MERV grades, including smaller dust and mold spores. That added efficiency comes with a modest increase in airflow resistance, which the Quest 70's fan is sized to handle.

When should I replace it?

Replace it once you notice reduced airflow or visible buildup on the filter media, and check it more often in dusty grow environments. Keeping a spare on hand avoids downtime between changes.