G4 Sub-Frame Prefilter
G4 sub-frame panel prefilter with a removable aluminium frame for HVAC pre-filtration. Washable non-woven/polyester media — replace the media and reuse the frame to cut running cost.
Overview
The G4 sub-frame prefilter is a coarse panel filter built on a detachable aluminium frame. Its removable (sub-frame) design lets you replace only the filter media and reuse the frame, while the reinforced mesh ribs deliver high rigidity and a large dust-holding capacity at low resistance. Non-woven and polyester synthetic fibre media can be washed and reused for a long service life.
Key Features
- Detachable panel aluminium frame with aluminium or plastic corners – rigid and stable, resists deformation in demanding environments
- Removable frame design – replace the media and reuse the frame
- Sub-frame mesh reinforcement ribs – high rigidity and large dust-holding capacity at low resistance
- Non-woven and polyester synthetic fibre media – washable and reusable, long service life
- Progressive-density fibre structure – extends the service life of downstream medium filters
Specifications
| Parameter | Value |
|---|---|
| Product name | G4 sub-frame prefilter |
| Filter class | G4 (legacy EN 779); G1-G4 available |
| Filter media | Non-woven filter cotton / polyester synthetic fibre |
| Sealant | All-purpose adhesive |
| Frame material | Aluminium profile, paper frame, aluminium plate or galvanized steel |
| Max temperature | 80 °C |
| Max humidity | 80% (paper frame) / 100% (metal frame) |
| Media | Washable, reusable |
Applications
Pre-filtration for large building HVAC systems (offices, meeting rooms, hospitals, shopping malls, airports), general industrial plant central ventilation and cleanroom central ventilation systems.
OEM/ODM supported for distributors, HVAC contractors, AHU manufacturers and project buyers.
