I bought the blender jar and now my blender is working a lot better. I have found though that I need to buy new blender jars occasionally. My blender base is working well now that I have a new jar. I have had my K=Tec for years but I have had to replace the jar quite a few times..
I found out after I purchased these jars "on sale" that I could have bought a new Blendtec for about $20 more at Costco. These are the last jars that I will buy. I am done with this product.
Our Blendtec is several years old. When it started spewing out black junk, we called to see if we needed to purchase a new machine. We were informed that it was the jar that was causing the issue, so we ordered a new one. It does work, but I have to hold the jar in place to keep it from wobbling like crazy. I called the to find out if this was normal, and was told that it does not exactly fit older bases, but it does still work.
Seems of good quality, sturdy. I hope this one lasts longer than the last one did. For the price you pay for these blenders, the accessories are certainly not cheap.
Simply the best! I am on my second jar due to some staining after years of use and the blender keeps going! The four side jar is the perfect size for juicing for my family of four!