This special CPAP/BiLevel tubing is manufactured by Puritan Bennett specifically for use on CPAP and BiLevel systems, such as those listed below, that require an internal pressure line.

Compatibility Information: This tubing will fit the following machines: GoodKnight 418A, 420E, 420S, GoodKnight BiPAP 425 and KnightStar 330 Systems. For GoodKnight 420G and 420SP systems please use the Standard or Premium CPAP Tubing found elsewhere on this site.