This is a 2M brush which is designed for the Resmed Airsense 10 Slimline tubing and the Philips Respironics Slimline tubing. If you have the Resmed Airsense 10 Slimline tubing you need a 2M brush as it can only be accessed from one end. 

Etc. The bristle diameter is 15mm which is normally the size of the hose. If you're not sure if its comptaible please send us a message. 

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