12 Packs Universal Filters Fit in-Line Filter,Filtered Air Connector Compatible with Dreamstation,Fits All 22mm 25mm Heating Tube Machine

Included:12pcs inline filters each packing. Compatible:Compatible with all ResMed AirSense, AirCurve 10 to S9 Series. Philips,dreamwear ,dreamstation series . Easy Use: Just Connect the filter to machine between the air outlet and your tubing. As the picture show for the method of connecting heated tubing-3 ways to use. Note: Need to be replaced every 4 weeks or the white filter material look dirty.