Rigid ducting straight connector is part of the system Supertube range and is designed to achieve the highest possible energy efficiency from ventilation appliances. Domus rigid duct is manufactured from exacting tolerances to virtually eliminate air leakage and reduce pressure drop. Domus Straight Duct Connectors are ideal for joining multiple duct lengths to form longer runs, and for connecting directly to the chosen MVHR or MEV whole house appliance. Female connections