Quest MERV 8 Replacement Filter for the Dual 110 and Dual 150
Quest part 4031062 is the pleated panel these two units breathe through. MERV 8 is the coarser end of the range, and on this chassis it is the only grade Quest publishes. The EPA holds MERV 8 to 20 percent or better capture from 1 to 3 microns and 70 percent from 3 to 10. In practice that is the visible load: leaf dust, perlite grit, spent media. It will not do what a MERV 13 does down at the spore end. What it does do is keep that load off the evaporator coil. A coil that stays clean is a machine still making its rated pints, rather than drawing full power against a blinded face.
Quest Dual 110 and 150 Filter Size, and the Two Numbers Quest Publishes
Quest lists this panel for the Dual 110, unit part 4034220, and the Dual 150, unit part 4034230. Nothing else. The shared service manual Quest issues for the pair, TS-1175, files them together under the 10 Series name. Size is where Quest contradicts itself. The accessory listing gives 17.5 x 14 x 1.75 while the manual's specification table says 14 x 17.5 x 2. Same panel, same part number, two published depths. Match on 4031062 and the discrepancy stops mattering. On timing, the manual calls for a check every six months and a change at least that often. For agriculture it calls for a change with every grow cycle. It is also direct about skipping it. Running the unit without a filter, or with a less effective one, can clog the heat exchange coils and invalidates the warranty.
Key Features
- Quest part 4031062: The part number to match for a single panel, which is how these are stocked
- MERV 8 standard pleat: EPA holds the grade to 20 percent or better from 1 to 3 microns and 70 percent from 3 to 10, which covers the visible load
- Pleated for face area: More media surface than a flat panel, so it holds more dust before airflow starts to suffer
- Keeps the evaporator coil clean: Quest's manual warns a clogged coil can need disassembly to clean, which is the repair this panel exists to prevent
- Holds rated capacity: A blinded face makes the unit draw full power for fewer pints, so fresh media is the simplest way to hold output
- Fits the Dual 110 and Dual 150: Quest publishes unit parts 4034220 and 4034230, the pair covered by the shared 10 Series manual
- Two published depths: Quest's accessory listing says 1.75 inches and the manual says 2; it is one panel under one part number
- Six-month check and change: Quest's manual sets both at six months, and calls for a change with every grow cycle in agriculture
Technical Specifications
| Specification | Value |
|---|---|
| Quest part number | 4031062 |
| Filtration grade | MERV 8 |
| Size, accessory listing | 17.5 x 14 x 1.75 in |
| Size, service manual | 14 x 17.5 x 2 in |
| Media type | Standard pleat |
| Filters per unit | 1 |
| Compatible models | Quest Dual 110 (4034220), Quest Dual 150 (4034230) |
| Replacement interval | Check every 6 months; change at least every 6 months, or with every grow cycle in agriculture |
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.