pass it upit is cheap junk [SEP] older reviews mention the hose was a good quality by respironics not so any more this hose is cheap somewhat smelly plastic and too stiff to use in comfort on a cpap machine the bag it came in says its from american bantex the original hose that came with the cpap is much much more flexable i tried this one night and got rid of iti would recommend looking elsewhere to anyone looking for a new hose for cpap machine jim