A ducting apparatus comprising: a duct comprising an inner cavity proximate an end thereof, wherein the duct is manufactured such that the duct end comprises a bead and the inner cavity , the inner cavity being a peripheral cavity, void or notch around an inner circumference of the duct end ; and a reinforcing ring located within said duct end comprising one or more protrusions extending into said inner cavity of said duct so as to restrict relative movement between said duct and said reinforcing ring , wherein said duct is a first duct and said duct end is a first duct end, and said ducting apparatus further comprises a second duct having a second duct end that is fluidly connected to said first duct end, wherein said reinforcing ring is a first reinforcing ring, said second duct comprises a second inner cavity proximate an end thereof, and said ducting apparatus further comprises a second reinforcing ring located within said second duct end comprising one or more protrusions extending into said second inner cavity of said second duct so as to restrict relative movement between said second duct and said second reinforcing ring, wherein the ducting apparatus further comprises: a sealing ring surrounding at least a portion of each of said first duct end and said second duct end, wherein said sealing ring fluidly seals said connection between said first duct end and said second duct end; and a fastening mechanism configured to compress said sealing ring against the first and second duct ends, wherein said first and second reinforcing rings oppose the compression force exerted by said fastening mechanism. a duct comprising an inner cavity proximate an end thereof, wherein the duct is manufactured such that the duct end comprises a bead and the inner cavity , the inner cavity being a peripheral cavity, void or notch around an inner circumference of the duct end ; and a reinforcing ring located within said duct end comprising one or more protrusions extending into said inner cavity of said duct so as to restrict relative movement between said duct and said reinforcing ring , wherein said duct is a first duct and said duct end is a first duct end, and said ducting apparatus further comprises a second duct having a second duct end that is fluidly connected to said first duct end, wherein said reinforcing ring is a first reinforcing ring, said second duct comprises a second inner cavity proximate an end thereof, and said ducting apparatus further comprises a second reinforcing ring located within said second duct end comprising one or more protrusions extending into said second inner cavity of said second duct so as to restrict relative movement between said second duct and said second reinforcing ring, wherein the ducting apparatus further comprises: a sealing ring surrounding at least a portion of each of said first duct end and said second duct end, wherein said sealing ring fluidly seals said connection between said first duct end and said second duct end; and a fastening mechanism configured to compress said sealing ring against the first and second duct ends, wherein said first and second reinforcing rings oppose the compression force exerted by said fastening mechanism. a sealing ring surrounding at least a portion of each of said first duct end and said second duct end, wherein said sealing ring fluidly seals said connection between said first duct end and said second duct end; and a fastening mechanism configured to compress said sealing ring against the first and second duct ends, wherein said first and second reinforcing rings oppose the compression force exerted by said fastening mechanism. <EOS>