Stenner Peristaltic Pump Quick Pro Roller Assembly
The new Stenner "Quick Pro" roller assembly has a cam lock design that makes it easier to change out the pump tube.
To learn more about how this works please watch the video in the Videos tab on this page.
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Only 3 stars because it needed replacing under light usage - it would run about 15 minutes a day, and had 5 years of use. The flat shelf in the shaftway that fits the flat part of the shaft is what wore down. Needs harder plastic or maybe two flat parts instead of one? When trying to put in a new tube, while cranking with the flipped-over cover, the shaft turned instead of staying fixed. With the replacement roller assembly, the shaft couldn't turn, and by cranking pretty hard the rollers would expand and you'd hear a click, and the rollers stayed expanded after that. At different settings, checked the flow rates, which agreed with the manual. Seems to be working fine, now. Thanks, Cannon!
Stenner pumps have been shipping with the QuickPro rollers now for a number of years. Yes, it's still possible to get the old style rollers that don't have any type of spring tension, but I would advise against it. Tubes rupture much more easily with the old rollers. I haven't spoken to a Stenner engineer, but my guess is that's why the old rollers were discontinued. They just aren't as good, and the spring tension makes a world of difference. I also feel like the tubes are way easier to insert. Once you get the hang of collapsing and expanding the rollers, it's a piece of cake. Seriously, the QuickPro roller should be a no-brainer.