The Pool Blaster Grit Gitter is the underwater vacuum powered by you. The Grit Gitter is the perfect solution for quick spot cleaning in any pool or spa. More than a toy, the Grit Gitter is the product of engineering ingenuity, converting the strength of your hand into a powerful underwater cleaning system. Great for vacuum ing grit and debris from tight corners, the Grit Gitter floats on the surface of the water until you need it. The Grit Gitter is available in two different sizes, the standard Grit Gitter, which measures nine in. long, and the Grit Gitter Stretch, which measures thirty in.es long. for a quick, fun cleaning experience, make your choice the Grit Gitter.