Yes. I love it. I use a "plug" of blue foam in all my 510 carts. It's about 1/2 or even 1/3 the length of the cart, and just wide enough to hold itself in the cart. If you have to squeeze it too much to get it in, then it won't wick right either. I fill my cart about 3/4 or more full, then with tweezers, I "dunk" the blue foam, then position it right at the edge. Works best of anything I've tried.
BEFORE you use it, wash it with soap and water. It has a "taste" to it if you don't.