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Philips Respironics Machine Knob UI for Philip Respironics PR Machines

Top Review

"Product was shipped as stated and was absolutely the correct part. Fast, accurate service."

July 30, 2014

Product Overview

Manufactured by Philips Respironics.

Product Features

The Machine Knob UI for Philip Respironics PR Machines is the small, round knob on top of the Philips Respironics PR System One CPAP and BiPAP Machines. This knob turns the machine on and off and is used in setting the machine.

PR System One 50 Series Knob

  • Medium gray in color
  • Clear plastic rim around the edge
  • Sides are straight up and down
  • Sides are smooth, they are not ridged for grip

PR System One 60 Series Knob

  • Dark gray in color
  • Silver inlay around the rim
  • Sides are flared out
  • Sides ridged to offer a grip of the knob

Connection Tips

We have found that the metal ring inside of the knob connection can sometimes be separated and left on the knob post of the machine. When installing the new knob on your machine, first check to see if the post has a small metal ring stuck to it. The design can only use one ring. The presence of an extra ring will impact installation and cause difficulties. The best solution is to either remove the ring from the replacement part or remove the ring from the knob, and then attempt installation.

Return On Warranty Issues Only


This Product Includes...

  • 1- Knob in Selected Model 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.

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