 It's a paper filter that you would put on top of your bottle, I guess you could say, or your... As you're pouring it in. As you're pouring it in. Like a coffee strainer. That's exactly right. It's like a coffee strainer, only not quite as... It won't filter quite as well. It's going to take all the big chunks out, but you're going to put that in the bottle of the paint sprayer. You'll put that right in the top. Pour then. You'll make sure you're mixed up really well on your stain...