The SleepSense Cannula Disposable Filter attaches to any SleepSense Pressure Cannula. This low-cost hydrophobic disposable filter may be used with any type of pf cannula with the pressure sensor, eliminating the fear of patient cross-contamination and sensor contamination. Note: SleepSense items are for professional use only, and are for sale by or on the order of a physician only. Specifications SleepSense Cannula Disposable Filter Specifications Cannula Connection: Female 4 mm Luer. Sensor Connection: Male 4 mm Luer. Size (Outside Diameter): 1" (25 mm). Weight: 5 g (0.2 oz). Single use only. Package Quantity SleepSense Cannula Disposable Filter Package Quantity #15809: Box of 1. #15809-25: Box of 25. #15809-50: Box of 50. Literature SleepSense Cannula Disposable Filter Literature SleepSense Transducer Protector User Manual