Used fans and ducts, and repair of ventilation ducts. We always have 1000+ used channels in stock. We trade in your used Tolsma, Omnivent, Spiro, Steketee, Mooij, Ventri or grain channels for new Chlorine IPC free channels. We also have various used ex rental channels in stock. Repair of these channels is done by Loonbedrijf Oomen.