Quest 70 MERV 13 Replacement Filter, and Why Its Interval Is Shorter
Quest part 4037724 is the pleated panel the Quest 70 Pint breathes through. It is the only thing between the room and the coil. The panel measures 9 x 11.38 x 0.75 inches. MERV 13 is rated at 50 percent or better capture from 0.3 to 1 micron, then 90 percent from 3 to 10. Spores sit in that lowest band. Keeping the face clean is what stops the machine drawing full power for fewer pints. On the 70 the filter is routine maintenance rather than a spare part. It sets a shorter interval than the rest of the line to match.
Quest 70 Filter Size, the Three-Month Check, and Its Sibling-Brand Names
The Quest 70 is the exception in this line on timing. Check the filter every three months, not six. Replace the panel every three to six months. Every other Quest family here runs a six-month check. The 70 moves its air through less media, so the face loads faster. The warning is blunt. Running the unit without a filter, or with a less effective one, may cause internal damage and invalidate the warranty. The same panel also appears under other Therma-Stor brands, as a Santa Fe or a Broan-NuTone MERV 13. Match on 4037724 and the brand on the box stops mattering. Worth keeping 4037724 somewhere findable, taped inside the service panel if nothing else. The brand on the replacement box will vary; the number will not. One caveat: this is the finest grade Quest offers for the 70, with no coarser option to trade capture for interval.
Key Features
- Quest part 4037724: The part number to match, one panel per unit
- 11.38 x 9 x 0.75 actual, 9 x 11 x 1 nominal: Measure against the actual size
- Three-month check, not six: The Quest 70 is the exception in this line, with a check every three months and replacement every three to six
- MERV 13 pleated media: Rated at 50 percent or better from 0.3 to 1 micron and 90 percent from 3 to 10
- Keeps the evaporator coil clean: Running without a filter, or with a less effective one, may cause internal damage and invalidate the warranty
- Holds rated capacity: A loaded face makes the unit draw full power for fewer pints, so fresh media is the simplest way to hold output
- Fits the Quest 70 Pint: Unit part 4033750, and it takes a single panel
- Sibling brands: The same Therma-Stor panel appears as a Santa Fe and a Broan-NuTone filter, so the part number is the reliable match
Technical Specifications
| Specification | Value |
|---|---|
| Quest part number | 4037724 |
| Filtration grade | MERV 13 |
| Nominal size | 9 x 11 x 1 in |
| Actual size | 11.38 x 9 x 0.75 in |
| Media type | Standard pleat |
| Filters per unit | 1 |
| Compatible models | Quest 70 Pint (unit part 4033750) |
| Replacement interval | Check every 3 months; replace every 3-6 months |
More on how Quest and Anden size their filters, what the MERV numbers mean and when each brand says to change them: Quest and Anden Filters: Sizes, Ratings and Replacement Timing.