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Quantity
1
Description
5.0
28 ratings
5
4
3
2
1
Works perfect, a must have for an SR540 or SR800. Fast shipping and a nice deal with some free beans.
Todd · June 24, 2026
Changed everything
We have had a couple SR500s and about 6 months ago got the SR800. After some frustration with the 800, we finally decided to get the extension tube. It has made a huge difference; more even roasts, faster roasting. Best investment we have made in years.
Jodi · April 13, 2026
Much Improved Experience?
SR500 user graduated to SR800 over a year ago. Using stock chamber, never got temp above 385° and results were "meh". Roasted 4 different varieties of beans with the extension. It fits well, and bean movement was more manageable. Temps reached 450°! I need to tweak my roasting process to make my roasts sweeter. But initial results were markedly improved. I am excited to be at the base of the learning curve! Well worth the investment!
Robert · March 13, 2026







