Camfil Opti-Pac
The Camfil Opti-Pac combines high-efficiency performance with a compact 4-inch design, saving valuable HVAC space while lowering energy and disposal costs. Engineered for durability, longevity, and sustainability, it delivers consistent clean air in demanding commercial, medical, and industrial applications where space is at a premium.
UL Listed
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From $44.80 / each
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Overview of Camfil Opti-Pac
The Camfil Opti-Pac redefines compact air filtration by providing full-size performance in a streamlined 4-inch form. Built to handle space constraints without sacrificing efficiency, it extends service life, improves airflow, and reduces environmental impact. With advanced construction and dependable media, the Opti-Pac offers both performance and sustainability for modern HVAC systems.
Space-Saving Design with Big Performance
At just 4 inches deep, the Opti-Pac is engineered to fit seamlessly into tight HVAC layouts like variable air volume units, rooftops, and compact housings where traditional filters cannot. Despite its smaller footprint, it delivers the same high-efficiency performance as larger filters. By saving space, reducing shipping volume, and simplifying inventory management, it creates efficiencies that benefit both operations and facility budgets.
Extended Life and Energy Efficiency
The Opti-Pac’s wet-laid microfine glass media is arranged in a Close-Pleat design, which maximizes surface area and evenly distributes airflow. This allows the filter to load dust gradually, extending its service life while maintaining a low pressure drop. With longer filter cycles and improved dust-holding capacity, facilities enjoy consistent energy savings, fewer change-outs, and dependable indoor air quality over time.
Durable, Sustainable Construction
Engineered with thermoplastic resin separators, diagonal supports, and a high wet-strength beverage board frame, the Opti-Pac maintains its shape under demanding conditions like high pressure or turbulent airflow. Its compact build also reduces disposal volume by up to 66% compared to conventional filters. By lowering waste and supporting sustainability goals, the Opti-Pac offers reliable clean air while minimizing environmental impact.
Specifications
| Efficiency | MERV 11, 13, 14 (MERV-A 11, 13, 14) |
|---|---|
| Depth | 4" (3.75" actual) |
| Media | Micro glass fiber |
| ISO Efficiency | ePM10 70, ePM1 60, ePM1 70 |
| Pleat Separators | Thermoplastic resin |
| Media Area | 53 to 113 sq ft |
| Frame | High wet-strength moisture resistant beverage board with integral diagonal support members |
| Initial Resistance | 0.33 in w.g. (MERV 11), 0.49 in w.g. (MERV 13), 0.64 in w.g. (MERV 14) at 500 fpm |
| Final Resistance | 1.0 in w.g. maximum |
| Airflow | 1,000 to 2,000 cfm |
| Airflow Direction | Bidirectional |
| Burst Strength | Guaranteed to 5.0 in w.g. without media pack failure |
| Max Temperature | 140°F continuous, 175°F intermittent |
| Standards | ASHRAE 52.2 with Appendix J, ISO 16890 |
| UL Rating | UL 900 |
| Quality System | ISO 9001:2015 |
| Waste Reduction | Up to 2/3 less dumpster volume |
| Applications | VAV systems, commercial, medical, industrial where space is limited |
| Available Sizes | 20x16x4, 20x20x4, 24x12x4, 24x18x4, 24x20x4, 24x24x4, 25x16x4, 25x20x4 |
Sizes & part numbers
23 options. Choose one to see its price and stock.
| Size | Efficiency | Item SKU | Manufacturer part # | Case qty |
|---|---|---|---|---|
| 12 x 24 x 4 | MERV 11 | 855148002 | 855148002 | 1 |
| 12 x 24 x 4 | MERV 13 | 855148012 | 855148012 | 1 |
| 12 x 24 x 4 | MERV 14 | 855148022 | 855148022 | 1 |
| 16 x 20 x 4 | MERV 11 | 855148006 | 855148006 | 1 |
| 16 x 20 x 4 | MERV 13 | 855148016 | 855148016 | 1 |
| 16 x 25 x 4 | MERV 11 | 855148005 | 855148005 | 1 |
| 16 x 25 x 4 | MERV 13 | 855148015 | 855148015 | 1 |
| 16 x 25 x 4 | MERV 14 | 855148025 | 855148025 | 1 |
| 18 x 24 x 4 | MERV 11 | 855148007 | 855148007 | 1 |
| 18 x 24 x 4 | MERV 13 | 855148017 | 855148017 | 1 |
| 18 x 24 x 4 | MERV 14 | 855148027 | 855148027 | 1 |
| 20 x 20 x 4 | MERV 11 | 855148001 | 855148001 | 1 |
| 20 x 20 x 4 | MERV 13 | 855148011 | 855148011 | 1 |
| 20 x 20 x 4 | MERV 14 | 855148021 | 855148021 | 1 |
| 20 x 24 x 4 | MERV 11 | 855148003 | 855148003 | 1 |
| 20 x 24 x 4 | MERV 13 | 855148013 | 855148013 | 1 |
| 20 x 24 x 4 | MERV 14 | 855148023 | 855148023 | 1 |
| 20 x 25 x 4 | MERV 11 | 855148008 | 855148008 | 1 |
| 20 x 25 x 4 | MERV 13 | 855148018 | 855148018 | 1 |
| 20 x 25 x 4 | MERV 14 | 855148028 | 855148028 | 1 |
| 24 x 24 x 4 | MERV 11 | 855148004 | 855148004 | 1 |
| 24 x 24 x 4 | MERV 13 | 855148014 | 855148014 | 1 |
| 24 x 24 x 4 | MERV 14 | 855148024 | 855148024 | 1 |
