I bought the tumblers from APP (lowest price). I watched a video that they did on YouTube. Was VERY glad to see that I did not have to disassemble the washer to install them (old ones had a screw installed from the outside of the SS drum) the newer version that was shipped to me slid into 6 channels and had 2 screws to secure them in place. Took 10 minutes to install all 3.