CPAP Tubing 46 cm Length 15 mm ID 22 mm Cuffs - EachCPAP Tubing 18 Inch Length 15 mm ID 22 mm Cuffs 18 inch tubing with 22 mm cuffs Compatible with nearly all CPAP, BiPAP and BiLevel systems for every manufacturer on the market Smooth interior and a corrugated exterior for excellent flexibility and unrestricted interior flow characteristics Thermoplastic rubber (TPR) cuffs to reduce tearing Low memory in plastic tubing helps to avoid kinks