AAF’s PREpleat LPD HC filter is the lowest initial resistance MERV 8 pleated filter in the industry. Combined with its high DHC, the PREpleat LPD HC filter provides an extended life cycle and energy efficient performance.
VariCel® S20
Product Overview
The VariCel S20 is a MERV 14 pleated filter offering high energy efficiency and long-lasting performance. It features 100% synthetic and recyclable media, with an expanded metal support grid to maintain pleat shape, and robust frame with seal to prevent air bypass. Available in 2” and 4” models, it effectively protects HVAC systems and allows for easy disposal.
Key Features
Low Operational Resistance: Reduces energy consumption
High Dust Holding Capacity: Ensures effective particulate capture
V-Pleat Design: Optimises airflow and reduces energy costs
Key Highlights


Typical Applications
• Commercial Buildings
• Industrial
• Pharmaceutical
• Schools and Universities
Superior Design and Construction
Media: 100% synthetic non-woven, proprietary media that can be recycled. Engineered with a gradient density composition that achieves a MERV 8 rating using the mechanical method of particle capture. Media does not rely on an electrostatic charge to capture particulates, since the charge dissipates over time.
Media Support: Expanded metal is continuously laminated on the air leaving side to provide pleat stability during operation. Pleat shape is maintained, allowing full media utilization and maximizing DHC.
Pleat Design: V-Pleat design aids in pressure drop while reducing energy cost. Design allows for maximum airflow and DHC during the life of the filter.
Frame: Heavy-duty, two piece, moisture-resistant frame includes diagonal and horizontal support members bonded to the media on the air entering and exiting sides for unsurpassed frame strength. Interlocking corners and positive media-to-frame seal reduce the possibility of air bypass.
Operating Temperature Limits: Max. operating temp. is 180°F (82°C).


| ASHRAE 52.2 | MERV 14 |
| ISO 16890 | ePM1 60% |
| Filter Depth (mm) | 44, 95 |
| Media Type | Synthetic |
| Frame Material (Standard) | Moisture Resistant & beverage Board |
| Frame Material (Optional) | Stainless Steel, Aluminum, GI |
| Frame Material | Beverage Board |
| Special Size Available | Yes |
| Antimicrobial Available | Optional |
| Recommended Final Resistance | 250 Pa |
| Max Operating Temperature | 93ºC |



