| BRAND | Diehl |
| Product | ALTAIR V4 DN15/20 |
| Internal code | IMP5050631 |
| Technical specification | DN15/20 Q3=2.5m3/h (DN15) / Q3=4m3/h (DN20) MID approval up to R=800 Starting flowrate at 0.4 l/h Composite & brass version High dynamic range Installation in any position Optional dual-zone filter |
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