Genesis 950. I use it in a steam cleaner. It is awesome. It cleans pretty much every kind of stain out you can imagine. When I clean carpet stains or stains on furniture, I typically use it in the carpet shampooer. However i have used it as a spot cleaner, but I like the machine better because it evens out the pile in the carpet. When I have the stains on clothes, I pretreat the stain directly with the 950. They say to mix it with water, but for clothing stains I actually pretreat them straight then throw it in the washer as it's filling up.