Filter HG 234/20 SPBT
![Filter HG 234/20 SPBT](https://thumbor.itds.ch/RoIh4qYo7_dHWz2aol7_F2KBC3s=/600x600/top/https://www.haerdi.com/file/562/filter-hg-234-20-spbt.jpg)
Progressive layer of fibers, thermically bonded
- Filter classification
- G4
- Areal density
- 230 g/m²
- Thickness
- 20 mm
- Initial pressure drop
- 55 Pa
- Air leaving side is blue
- Unbreakable, synthetic fibres
- Fire retardant according to DIN 53438-3 (F1)
- Weldability thermal, high frequency and ultrasonic
- Temperature resistant up to max. 100 °C, 120 °C
- Storage capacity 370 g/m2
- Available in rolls