This 3-ply media combines layers of different densities, arranged from coarse to fine. The depth-loading design captures particles throughout the media thickness, unlike surface-loading pleated types that rely mostly on the surface.
The selvedge edge forms a self-gasket seal that eliminates unfiltered air bypass around or between filters. Moisture-resistant synthetic media prevents deterioration and mold growth, avoiding risks of filter collapse and microbial contamination in HVAC systems. Available in panels, links, and custom sizes.
Key Features
- 3-ply depth-loading synthetic media
- Ring panels, link configurations, and other formats available
- Moisture and mold resistant
- Galvanized internal wire support
- Self-sealing selvedge edge
- MERV 8 efficiency
- Meets ANSI/UL-900 requirements
Construction & Applications
Standard cardboard filters are vulnerable to moisture, leading to frame weakness and potential blowout in HVAC units. The 3-ply selvedge edge design eliminates air and particulate bypass, preventing dust and contaminants from entering equipment or occupied spaces.
Performance Data
| Product | 3-Ply Depth-Loading Filter |
| Media | Synthetic, 3 deniers |
| Frame | Galvanized wire |
| Seal | Thermally generated (standard sizes) |
| Resistance @ 125 FPM | 0.07" w.g. (17 Pa) |
| Resistance @ 250 FPM | 0.18" w.g. (45 Pa) |
| Resistance @ 375 FPM | 0.31" w.g. (77 Pa) |
| Resistance @ 500 FPM | 0.46" w.g. (114 Pa) |
| Resistance @ 625 FPM | 0.62" w.g. (154 Pa) |
| Final Resistance | 1.0" w.g. (249 Pa) |
| Efficiency | MERV 8 |
These panel filters provide a reliable balance of value and performance. Using polyester-based media, they are engineered for improved indoor air quality and to protect HVAC equipment. The design extends the life of secondary filters, while remaining lightweight, durable, and easy to install.
Key Benefits
- Improves indoor air quality and protects HVAC systems
- Lightweight, durable, and easy to install
- Self-sealing design prevents air bypass
- Progressive density structure with tackifier for depth loading
- Moisture and temperature resistant synthetic media
- Available as single panels or in linked configurations
- Supports LEED certification requirements for new construction
Applications
- Commercial and industrial facilities
- Pharmaceutical environments
- Government and educational facilities
- Healthcare and hospital systems
- Paint booths and finishing operations
Performance Features
- Lower initial resistance: 0.30 in. w.g. @ 500 FPM
- High dust-holding capacity: up to 270 grams (24×24)
- Energy and operating cost savings through low resistance and high capacity
- Antimicrobial fibers incorporated into the media
- Temperature rated up to 160°F
Technical Data
- MERV 8 efficiency (ASHRAE 52.2 tested)
- Meets UL 900 requirements
- 100% synthetic media
- Available in standard and custom sizes, individual or linked panels
Performance Ratings
| Filter Type | MERV | Rated Face Velocity (FPM) | Initial Resistance (in. w.g.) |
| 3-Ply Panel | 8 | 300 | 0.16 |
| | 500 | 0.30 |
Airflow Capacities by Size
| Nominal Size (in.) | Exact Size (W×H×D in.) | Rated Airflow (CFM) 300 FPM | Rated Airflow (CFM) 500 FPM |
| 10 × 20 | 11¼ × 21½ | 420 | 700 |
| 12 × 12 | 13¼ × 13½ | 300 | 500 |
| 12 × 20 | 13¼ × 21½ | 500 | 800 |
| 12 × 24 | 13¼ × 25½ | 600 | 1000 |
| 14 × 16 | 15¼ × 17½ | 470 | 780 |
| 14 × 20 | 15¼ × 21½ | 580 | 970 |
| 14 × 25 | 15¼ × 26½ | 730 | 1220 |
| 15 × 20 | 16¼ × 21½ | 630 | 1040 |
| 15 × 24 | 16¼ × 25½ | 750 | 1250 |
| 16 × 16 | 17¼ × 17½ | 530 | 890 |
| 16 × 18 | 17¼ × 19½ | 600 | 1000 |
| 16 × 20 | 17¼ × 21½ | 670 | 1110 |
| 16 × 22 | 17¼ × 23½ | 730 | 1220 |
| 16 × 24 | 17¼ × 25½ | 800 | 1330 |
| 16 × 25 | 17¼ × 26½ | 830 | 1390 |
| 18 × 20 | 19¼ × 21½ | 750 | 1250 |
| 18 × 24 | 19¼ × 25½ | 900 | 1500 |
| 18 × 25 | 19¼ × 26½ | 940 | 1560 |
| 20 × 20 | 21¼ × 21½ | 830 | 1390 |
| 20 × 22 | 21¼ × 23½ | 920 | 1530 |
| 20 × 24 | 21¼ × 25½ | 1000 | 1670 |
| 20 × 25 | 21¼ × 26½ | 1040 | 1740 |
| 22 × 24 | 23¼ × 25½ | 1100 | 1830 |
| 22 × 25 | 23¼ × 26½ | 1150 | 1910 |
| 24 × 24 | 25¼ × 25½ | 1200 | 2000 |
| 25 × 25 | 26¼ × 26½ | 1300 | 2170 |
3‑Ply Panels, Links & Cubes
Three graduated layers (coarse → fine) for enhanced capacity and service life. Tackified media options improve capture efficiency and dust holding. Heat‑sealed construction around an internal galvanized wire frame with a self‑gasketing edge to reduce air bypass.
Series & Performance
| Series | Construction | Tackifier / Treatment | Typical Application | MERV | Initial Resistance @ 300 FPM (in. w.g.) |
| 635 | 3‑ply poly | Internal wet tackifier (1st ply) + dry tackifier (final ply) | Light commercial & industrial HVAC | 8 | 0.21 |
| 66 | 3‑ply poly | Anti‑microbial treatment; super‑tackifier (final ply) | Applications needing added protection from microbial growth | 9 | 0.23 |
| 625 | 3‑ply poly | Internal, non‑migrating wet tackifier (2nd ply) | Heavy‑duty, high‑velocity commercial & industrial | 9 | 0.29 |
Key Features
- Depth‑loading 3‑layer media for high capacity
- Self‑gasketing perimeter reduces air bypass
- Panels, links, and cube configurations available
- Media unaffected by moisture and humidity
- Max continuous operating temperature: 120 °F
Common Uses
- Commercial & industrial HVAC (including high‑velocity systems)
- Primary pre‑filtration to extend life of downstream filters
- Facilities requiring robust service life and consistent performance
Antimicrobial 3‑Ply Panels, Links & Cubes
Three‑layer, depth‑loading polyester media with an antimicrobial treatment and a non‑migrating super‑tackifier on the final ply. Designed for applications requiring added protection from microbial growth while maintaining low resistance and strong dust‑holding capacity.
Series & Performance
| Series | Construction | Tackifier / Treatment | Typical Application | MERV | Initial Resistance @ 300 FPM (in. w.g.) |
| 66 | 3‑ply poly | Anti‑microbial treatment; non‑migrating super‑tackifier (final ply) | Areas needing added protection from microbial growth | 9 | 0.23 |
Key Features
- Depth‑loading media with antimicrobial treatment
- Self‑gasketing perimeter for reduced air bypass
- Available as panels, links, cubes, and sleeves
- Media is non‑allergenic; unaffected by moisture and humidity
- Max continuous operating temperature: 120 °F
Common Uses
- Retail, office, education, and government buildings
- Light industrial and distribution facilities
- HVAC pre‑filtration or stand‑alone service where appropriate