/ Product catalogue / Commercial and industrial ventilation / Accessories for ventilating systems / Heaters / Water heaters / NKV (rectangular) / NKV 500x250-2
| B | B1 | B2 | B3 | H | H1 | H2 | H3 | L | L1 | L2 | K |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 500 | 520 | 540 | 665 | 250 | 270 | 290 | 200 | 200 | 43 | 43 | G 3/4'' |
