G3/G4 HVAC Panel Pre-Filters

Panel air filters provide first-stage filtration at fresh air intakes and in air handling units. They help protect downstream filter stages and HVAC equipment.
Configuration options
Select the panel dimensions, frame material and filter media for the existing mounting frame. Custom sizes are available for equipment builds and replacements.
What to include in your inquiry
Send the frame width, height and depth, required efficiency, airflow and order quantity. An existing filter label or drawing helps confirm the fit.
Get a quoteProduct specifications
| Filter grade | G3 / G4 |
|---|---|
| Filter media | Synthetic fiber media |
| Frame options | Aluminum alloy, galvanized steel or stainless steel |
| Common depths | 10, 21, 46 and 96 mm |
| Example sizes (L × W × D) | 295 × 295 × 46, 495 × 495 × 46, 595 × 595 × 46, 595 × 595 × 96 and 595 × 595 × 146 mm |
| Airflow and initial pressure drop | Confirmed for the selected model and operating conditions |
| Typical applications | AHUs, fresh air units, cleanroom pre-filtration, spray booths, air showers and industrial ventilation equipment |
Custom sizes and bulk supply
Send a drawing or opening dimensions to specify size, frame, media, grade and packaging. Samples can be arranged. Bulk order lead time is confirmed after reviewing the specification, quantity and production schedule.
Product detail images
The supplied reference images are in Chinese. Dimensions, airflow, initial pressure drop and test documentation depend on the quoted model.










