Commercial panel filters
Panel filters specified for your system, not picked from a generic list.
Pleated and flat-panel filters for HVAC and AHU applications, supported by practical specification help, UK supply and managed fitting options.

Typical use
HVAC pre-filtration
Custom sizes
subject to specification
ISO 16890
EN 779:2012 tested media
Supply only
or managed fitting
Site survey
for unknown requirements
The panel filter range
Five constructions, each with a full specification
Choose a type to see its filter grade, media, frame, depths and standard sizes.
G3 – G4Synthetic panel filters
Pre-filter or basic filtration
- ISO 16890
- ISO Coarse 50% – 60%
- Depths
- 15mm, 22mm, 47mm
G3Glass panel filters
Pre-filter, paint and dust arrestance
- ISO 16890
- ISO Coarse
- Depths
- 15mm, 22mm, 47mm, 98mm
G4 – M5Pleated panel filters
Pre-filter for air handling systems
- ISO 16890
- ISO Coarse 60% – 95%
- Depths
- 22mm, 47mm, 97mm
G4Metal cased pleated panel filters
High-capacity pre-filter, damp or high-airflow duty
- ISO 16890
- ISO Coarse 80%
- Depths
- 20mm – 100mm
G4High capacity pleated panel filters
High-capacity pre-filter, higher air volumes
- ISO 16890
- ISO Coarse 60%
- Depths
- 22mm, 47mm, 97mm
Compare panel filter types
| Specification | Synthetic | Glass | Pleated | Metal cased pleated | High capacity pleated |
|---|---|---|---|---|---|
| EN 779 class | G3 – G4 | G3 | G4 – M5 | G4 | G4 |
| ISO 16890 class | ISO Coarse 50% – 60% | ISO Coarse | ISO Coarse 60% – 95% | ISO Coarse 80% | ISO Coarse 60% |
| Media | Polyester fibre pad | Spun glass fibre | Cotton / polyester blend, pleated and bonded to metal mesh | Synthetic pleat pack, graduated density | Cotton / polyester blend, 50% more pleats |
| Frame | Card, metal frame option | Card, metal frame option | Moisture-resistant card | Galvanised steel, wire rod W clips each face | Moisture-resistant card, expanded steel support grid |
| Frame depths | 15mm, 22mm, 47mm | 15mm, 22mm, 47mm, 98mm | 22mm, 47mm, 97mm | 20mm – 100mm | 22mm, 47mm, 97mm |
| Max temperature | Standard HVAC | Up to 180°C | Standard HVAC | Up to 80°C | Standard HVAC |
| Availability | Standard and bespoke sizes | Standard and bespoke sizes | Stocked sizes next-day, non-standard made to order | Stocked sizes next-day, non-standard made to order | Non-standard sizes available to order |
A dependable first stage
Protect downstream filters, equipment and indoor environments
Panel filters are widely used in commercial air-handling systems as pre-filters or final filters, depending on the construction and required filter grade.
System-matched performance
Select the filter grade and media construction around the actual application.
Multiple constructions
Pleated, flat-panel and specialist configurations across common frame types.
Dimensional support
Confirm face size and depth, including non-standard requirements.
Service options
Add fitting, chamber cleaning, disposal and planned replacement support.
Specification options
The information needed for an accurate quote
An accurate quote starts with the installed system, operating conditions and the outcome the filter must achieve.
| Variable | Typical information to confirm |
|---|---|
| Filter grade | Required particulate efficiency and system role |
| Face dimensions | Height × width |
| Depth | Overall frame depth and installation clearance |
| Media construction | Pleated or flat media, selected for the application |
| Frame | Card, plastic or metal construction as required |
| Quantity and site | Current demand, delivery point and replacement plan |
Common applications
Where commercial panel filters are used
- Air-handling units
- Comfort ventilation
- Commercial offices
- Education estates
- Hospitality
- Healthcare support areas
- Manufacturing
- Facilities management
Not sure what is fitted?
Start with what you can see
A label, face dimensions and frame depth are often a useful starting point. For larger or mixed estates, a site survey can create a clearer asset record.
Panel-filter questions
Useful answers before you specify
The right grade depends on the system role and the level of protection required downstream. A free site survey or the existing label, dimensions and application details help confirm the correct filter grade for your system.
Technical help without the hard sell
Send the panel-filter details you have
Dimensions, grade, quantity, site and a photograph of the existing label can help Maxi review the requirement.
