| Head office | Inter-Drain
Sales bv Morsestraat 43 4000 HD Tiel The Netherlands |
| Post address | Inter-Drain
Sales bv. P.O.Box 6177 4000 HD Tiel The Netherlands |
| Telephone number | +31.344.612746 |
| Fax number | +31.344.622674 |
| Privat | Mr. Marc van der Gaag Vice-President Telephone : +31.6.51.42.77.35 |