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UI Control Knob for PR System One REMstar Series CPAP & BiPAP Machines

  •  $7.45

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This is the small round UI Control Knob (Dial) that sits on top of all PR System One CPAP & BiPAP machines. The knob is used to control the machine's various settings and functions as well as to turn the machine on and off.

The System One UI Control Knob is dark, charcoal gray in color with a silver inlay around the rim. The sides of the knob are ridged to make them easy to grip.

COMPATIBILITY: This Control Knob comes standard with all "60 Series" System One CPAP & BiPAP machines -- REMstar Plus 260, REMstar Pro 460, REMstar Auto 560, BiPAP Pro 660, BiPAP Auto 760, etc. It can also be used to replace the lighter gray Control Knob found on all "50 Series" System One CPAP & BiPAP machines -- REMstar Plus 250, REMstar Pro 450, REMstar Auto 550, BiPAP Pro 650, BiPAP Auto 750, etc.

INSTALLATION: When an old UI Knob is removed or lost a small metal ring from inside of it can sometimes get stuck on your CPAP machine's knob post. If that ring is present the new UI Knob will not fit properly onto the post. To fit the new UI Knob properly remove the metal ring, either from the post or from inside the new knob, before inserting the new UI Knob onto the machine's knob post.


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Manufacturer Philips Respironics
Part Number(s) 1099581
HCPCS Insurance Code E1399
Manufacturer's Warranty 30 Days
Warranty Notes: Warranty applies to primary item. Accessory and parts warranties may vary. Review manufacturer's documentation for full details.
Typical Country of Origin United States of America

UI Control Knob for PR System One REMstar Series CPAP & BiPAP Machines

5 out of 55 out of 55 out of 55 out of 55 out of 5
Written By: vern, NM 9/27/2016
lucky to find a knob for cpap machine at a reasonable price, shipping was prompt

5 out of 55 out of 55 out of 55 out of 55 out of 5
Perfect Replacement Knob
Written By: Hal, North Carolina 1/6/2016
After ordering the replacement it arrived within several days. The price isn't bad and the shipping is free! My old metal ring that is referenced in other reviews was the biggest issue. I was able to removed the old metal ring from the post with a small paper clip. I finally got leverage on the curved side of the post. There were a couple of indentations that turned out to be slits in the metal ring that allowed me to get the leverage. Overall, great experience!

5 out of 55 out of 55 out of 55 out of 55 out of 5
Another good seller
Written By: Na, 98409 11/27/2015
Quick, precise, and inexpensive. You just can't ask for more.

5 out of 55 out of 55 out of 55 out of 55 out of 5
Replacement knob
Written By: William, White Plains 11/23/2015
Fit like new

5 out of 55 out of 55 out of 55 out of 55 out of 5
Right Product
Written By: BA Greene, Florida 8/31/2015
Some how the knob on my machine broke. I looked at several websites but decided to purchase from Direct Home Medical for price. Shipping was within 24 hours of purchase and delivery within 72 hours, best service...

5 out of 55 out of 55 out of 55 out of 55 out of 5
My supplier sent me to this website
Written By: Wally H, Ohio 7/23/2015
My BiPap supplier said they did not have the knob but gave me direct home medical's website address. Found what I needed quickly, the price was right and delivery was quick. Knob fit my System one machine perfectly.

5 out of 55 out of 55 out of 55 out of 55 out of 5
Cpap Control knob
Written By: Richard K, Olmsted IL. 7/13/2015
Exactly what I expected and quick shipping.

5 out of 55 out of 55 out of 55 out of 55 out of 5
Written By: Ed L, 6/9/2015
This knob worked perfectly to replace one broken on a plane trip. Make sure that the metal insert from the old knob is removed from the CPAP first so that the new knob will fit.

5 out of 55 out of 55 out of 55 out of 55 out of 5
Clearly OEM quality.
Written By: Joe W, Florida 6/2/2015
Put it on. It works just like the original.

5 out of 55 out of 55 out of 55 out of 55 out of 5
Just what I needed
Written By: Bob, Honolulu 3/9/2015
The knob was an exact match, I couldn't get it on at first, then realized the metal sleeve from old knob was stuck on the shaft. It was a little tricky, but if you're having trouble installing this, most likely that's the problem. Service was excellent, received it in a few days.


View Popular Sleep, Oxygen & Asthma Therapy Search TermsSleep TherapyReplacement Parts for CPAP & BiLevel Machines All PR SystemOne "60 Series" REMstar CPAP & BiPAP Machine PartsSleep, Oxygen & Respiratory Therapy Products by Philips Respironics


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