Feature 1Perfect Replacement: Breathing machine heating tube can be replaced for ResMed S9, which can provide perfect fitment for you. 2Reduce Noise: Breathing machine heating pipe can reduce the noise generated by working, which also prevent condensation. 3Rubber Joints: Breathing machine heat tube adopted rubber joint, provide firm connection, which allow you can use at ease. 4Freely Moving: Heating tubing with high flexibility, allows you can easily move around without causing leakage, ensuring proper sleep. 5Smoothing Inner: Breathing machine hose with smoothing interior, easy to install and remove, which can make the machine work better.Item Type: Breathing Machine Heating HoseMaterial: PlasticBreathing Machine Accessories Type: PipingSuitable for: AdultsFitment: Replacement for ResMed S9 . Package List1 x ;Breathing Machine Heating Hose1 x ManualNoteOnly applicable for S9 models, other models are not applicable.