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    Philips Respironics O Ring for M Series Humidifier

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    Product Overview

    Manufactured by Philips Respironics.

    Product Features

    The M Series Humidifier O Ring is a replacement O ring for use with only the R1 chamber for M Series Humidifiers. The R1 chamber has a replaceable O ring and features a blue latch. Later versions have a black latch. If there is any doubt, please see the M Series Replacement Humidifier Chamber which features a universal kit which can be used with any M Series humidifier.

    This is the O Ring only and does not include any other items.

    Return On Warranty Issues Only


    This Product Includes...

    • 1 - O Ring always offers these services:

    • 8 am to 8 pm CST Toll Free Phone and Email Support
    • 24 hour access to our Support Forum
    • Learning Center for information on sleep apnea and cpap equipment
    • Consumer Purchasing Trends Reports
    • Warranty Services for all items purchased through
    • Insurance Compliant Invoices
    • Free Prescription Request System

    Manufacturer Note

    • Philips Respironics products are for sale only to patients within the U.S. and not to other third parties or businesses.
    • All services provided by, including advertisement, ordering, sale, delivery, instruction, and setup of the products are performed solely by and independently of the manufacturer.

    Important Tips

    Compatibility Note: Respironics made updates to the M Series chamber a number of times during its life span. This O ring is for use only with the original R1 chamber for M series humidifiers. These chambers have a replaceable O ring and a blue latch on the chamber. Later versions have a built in gasket and a black latch. If unsure, the Universal Kit which will work with any M Series Humidifier can be viewed here.

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