Otis Classic Whipped Cream Dispenser Replacement Piston

it worked perfect

This was the most reasonably priced replacement piston I could find anywhere. It fit my dispenser perfectly and even appears to be stronger than the last replacement I bought from another brand. The part arrived quickly in a simple little package. I will certainly order from this seller again.

It fit my Otis whip siphon without issue, but the gasket on the bottom part failed immediately. It split in half. Looking at the other reviews, perhaps I had a defective part? I submitted for a refund, not sure if I should try again or try another brand. Hopefully, you have better luck.

our syphon fell and broke the piston, easy replacement. does its job perfectly

I have a 25-year-old ISI whipped cream dispenser which had become unusable because the O-rings around the piston wouldn't hold a seal. I search for replacement rings without luck and then found this piston - but the description wasn't clear if it would fit the older ISI model.I received it a month ago and have used it twice with satisfactory results. I imagine this is a 5 star replacement for an Otis dispenser. I give it 4 stars because it's not a perfect fit for my needs.In the picture, you can see the original piston on the left and the new Otis piston on the right. The dimensions of the piston - the diameter and the distance between the rings - all match the ISI.There is one important difference. As you can see in the picture, the threaded portion of the Otis piston is much longer than my original ISI. This means that I have to screw the oringal ISI collar down very hard in order to get it into the correct position. If the collar isn't screwed on tight enough, then during use the piston won't be pushed up far enough when the handle is released.I am probably shortening the remaining life on the original ISI plastic collar by tightening it so far -- but I don't think it is damaging it significantly. It has resurrected a previously dead device. I expect I'll be able to replace the collar if it does wear out, and still for less than the cost of a new dispenser.

Piston was too thick to fit into my dispenser

Fit perfectly in a off brand dispenser.

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