Aprilaire 313 Healthy Home Filter
The Aprilaire 313 Healthy Home Filter is an OEM whole-home media cabinet filter engineered with 20 x 20 x 4 in actual dimensions to provide deep-surface particulate capture with minimal system static pressure.
3-Year True Cost of Ownership Model
Captures >85% of microscopic particles (0.3–1.0μm) per ASHRAE 52.2 E1 channel.
Deep pleat geometry delivers high surface area and minimal static pressure drop.
Thermal beverage board frame with wire backing to prevent media collapse under blower load.
Bulk multi-pack procurement typically reduces annual per-filter cost by 25% to 40%.
- Massive media surface area lasts 6-12 Months
- Ultra-low static pressure drop (0.14 in. w.g.)
- Self-sealing gasket prevents air bypass
- Official OEM fit and durability
- Requires professional 4-inch media cabinet installation
- Higher unit replacement cost than standard 1-inch filters
Verified Engineering Specifications
| Nominal Dimensions | 20x20x4 | Actual Dimensions | 20 x 20 x 4 in |
|---|---|---|---|
| Filter Depth | 4-inch | Media Construction | Self-Seal Collapsible Pleat |
| ASHRAE MERV Rating | MERV 13 | Proprietary Rating | | FPR 10 |
| Initial Resistance | 0.14 in. w.g. @ 400 FPM (Ultra-Low Resistance) | Airflow Capacity | |
| Replacement Filter Cost | $62.99 | Replacement Interval | Every 6-12 Months |
| Annual Consumable Cost | $62.99/yr | Compatible Equipment | Aprilaire 1310, 2310, 3310 Cabinets |
Our Take on the Aprilaire 313 Healthy Home Filter
A premium whole-house filtration cartridge that maximizes blower motor efficiency while capturing allergens down to sub-micron sizes.
Filtration Performance Note
Tested under ASHRAE 52.2 protocols, achieving MERV 13 rating with 40+ square feet of expanded pleated media.
Installation, Airflow Direction & Maintenance Protocol
Turn off furnace power. Unlatch media door, slide out exhausted cartridge, and slide new cartridge along cabinet guide rails.
Common Questions About the Aprilaire 313 Healthy Home Filter
How often does this media filter need replacement?
Under typical home use, this deep cartridge lasts 6-12 Months. Homes with pets or high dust should inspect at 6 months.
Can I use this filter in a standard 1-inch slot?
No. This 4-inch filter requires a dedicated whole-home media cabinet installed adjacent to your furnace or air handler.
Is this an authentic OEM replacement?
Yes, this matches official Aprilaire engineering specifications with factory self-sealing technology.
Compatible Cabinet Media Alternatives
Honeywell FC100A1011 Media Filter
When to choose: Direct 20x20x4 compatible fitment offering MERV 11 performance.
Aprilaire 310 Clean Air Filter
When to choose: Direct 20x20x4 compatible fitment with MERV 11 filtration.