This replacement elbow and swivel is for your Zest Q Nasal CPAP mask only. Helps your tubing rotate freely to eliminate any tugging.
The original Zest has the exhalation vent holes molded right into the frame above the elbow and uses Zest Elbow Kit SKU 400HC221.
The Zest Q Elbow Assembly is different than the Zest Elbow Assembly, they are not interchangeable.
