Filter mats
VL 333: 40 running meters/roll; 80 m²
VL 387: 20 running meters/roll; 40 m²
Fabrication
| Characteristics | VL 333 | VL 387 |
| Thickness x width | 10 x 2000 mm | 20 x 2000 mm |
| running meters/roll | 40 | 20 |
| m² | 80 | 40 |
VL 333: 40 running meters/roll; 80 m²
VL 387: 20 running meters/roll; 40 m²
| Characteristics | VL 333 | VL 387 |
| Thickness x width | 10 x 2000 mm | 20 x 2000 mm |
| running meters/roll | 40 | 20 |
| m² | 80 | 40 |