MVHR Nuaire Ductmaster Thermal Flat Duct - Insulated 204x60mm - 6 x 1m Lengths (1 box). Brand new. No fittings / accessories etc included. Compliant with building regulations the light weight material not only enables a one person lift, but also removes the time and cost of insulating PVC pipe line. All-in-one Thermal Ducting solution manufactured from lightweight material for ease of installation. The unique clip system forms an airtight seal, meaning no need for sealant or tape. Free P&P