Quest MERV 13 Filters by the Case: Twelve of Part 4038233
The 506, 706, 746 and 876 each run two filters rather than one. That arithmetic is what makes a case worth having. Twelve panels is six complete changes for a single machine, or one change across a room of six. Every filter in the case is Quest part 4038233, the same panel we sell on its own. Quest catalogues it at 18 x 20 x 2 and a tape across the panel reads 20 x 17.88 x 2. Both figures describe one filter, not the case.
What MERV 13 Holds Back, and When Quest Says to Change It
MERV 13 is the finest grade Quest publishes for this line. The EPA holds it to 50 percent or better capture from 0.3 to 1 micron, then 90 percent from 3 to 10. Mold spores travel in that lowest band, which is the reason the grade matters in a flowering room rather than an office. What the panels protect is the evaporator coil. A clean coil keeps the machine pulling its rated pints, while a loaded face makes it draw full power for fewer. Quest's manual for this family calls for the filter to be checked every six months, and changed at least with every grow cycle. Two panels per machine, several machines on a site, and that adds up to a real number of filters across a year. Holding a case means the change happens when the cycle says so rather than when the next delivery arrives.
Key Features
- Twelve of Quest part 4038233: Every panel in the case is the same filter sold individually, so there is no separate part number to track
- Two filters per machine: The 506, 706, 746 and 876 each take a pair, which is what turns twelve panels into six complete changes
- MERV 13 pleated media: EPA holds the grade to 50 percent or better from 0.3 to 1 micron and 90 percent from 3 to 10, the band mold spores travel in
- 18 x 20 x 2 nominal, 20 x 17.88 x 2 actual: Both published here, and both describe a single panel rather than the case
- Keeps the evaporator coil clean: A loaded face makes the unit draw full power for fewer pints, so fresh media is the simplest way to hold output
- Six-month check, change every cycle: Quest's manual for this family sets a check at six months and a change at least with every grow cycle
- Sized for a multi-machine site: A room running four or six of these gets through panels quickly, and a case keeps the schedule off the delivery calendar
- Fits the Quest 506, 706, 746 and 876: The full list Quest publishes against this panel, with two required on each
Technical Specifications
| Specification | Value |
|---|---|
| Quest part number, each filter | 4038233 |
| Filters per case | 12 |
| Filtration grade | MERV 13 |
| Media type | Standard pleat |
| Nominal size, one panel | 18 x 20 x 2 in |
| Actual size, one panel | 20 x 17.88 x 2 in |
| Filters per unit | 2 |
| Complete changes per case | 6 on a single machine |
| Compatible models | Quest 506, Quest 706, Quest 746, Quest 876 |
| Replacement interval | Check every 6 months; change at least with every grow cycle |
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.