DirectHomeMedical Customer Product Reviews
UI Control Knob for PR System One REMstar Series CPAP & BiPAP Machines
Based on 17 Customer Reviews. Contribute Your Review Now!
What a Knob
Written By: anneRkissed, Wisconsin 2/4/2017
First of all, I was delighted that the knob was available. My only problem was figuring out how to remove the clip to allow the new knob to be applied. I saw these reviews and took the advice and removed the clip from the post. (Was afraid of damaging the knob) With a little perseverance I finally succeeded in removing the pin. The knob then fit like a glove.
Written By: Machine User, Butler, PA 1/10/2017
The right knob for my machine. Had to remove old lock ring (as advised when purchased) from machine to attach new one.
Written By: Tim, Dallas 12/9/2016
The knob doesn't fit properly on the stem and so it wobbles
Cpap machine control knob
Written By: Skeet, Germantown, Md 11/20/2016
This item was received in a timely manner in good condition. It was the correct knob for my machine. Reasonably priced.
It's a perfect replacement.
Written By: Guy T, Vancouver, WA 11/4/2016
I broke the original knob off and needed a replacement. After shopping around, this seemed to be the best value. I had a little difficulty removing the metal insert from the old broken knob out of the machine but once it was all removed this unit fit perfectly.
Great service! Arrived sooner than expected. 😊
Written By: DYS, Virginia 10/29/2016
I wish I had known about being able to buy this little piece for my CPAP. The knob broke off a year and a half ago. Then my CPAP provider said they didn't take care of stuff like that. So glad I found Direct Home Medical!
Written By: AJC, 10/22/2016
Had to replace --this one fits well
Written By: vern, NM 9/27/2016
lucky to find a knob for cpap machine at a reasonable price, shipping was prompt
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!
Another good seller
Written By: Na, 98409 11/27/2015
Quick, precise, and inexpensive. You just can't ask for more.
Written By: William, White Plains 11/23/2015
Fit like new
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...
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.
Cpap Control knob
Written By: Richard K, Olmsted IL. 7/13/2015
Exactly what I expected and quick shipping.
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.
Clearly OEM quality.
Written By: Joe W, Florida 6/2/2015
Put it on. It works just like the original.
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.