Manrose PVC Flexible Ducting Hose provides a solution to overcome awkward situations where a rigid system cannot be installed. The Ø120mm round system is used for long duct runs where space is unrestricted and suitable for refurbishment or horizontal duct runs in roof and ceiling voids, particularly for use in kitchens, bathrooms, toilets, utility rooms and whole-house ventilation applications combined with high power extraction fans or cooker hoods. For optimum performance hose should be as straight and as taut as possible.