The Poolmaster Fine Mesh Replacement Swimming Pool Vacuum Bag is designed to collect smaller debris from your swimming pool or spa. The fine fabric mesh net features a toggle lock drawstring closure for secure fastening to most standard size swimming pool and spa leaf vacuums. The finely stitched mesh fabric is great for catching small particles, and measures 21.25 inches long by 16.5 inches wide, giving you ample space to capture tiny debris and removing it from your pool. This fine mesh replacement bag fits both Poolmaster 28300 Big Sucker Vacuum and Poolmaster 28316 Premium Swimming Pool Leaf Vacuum. A must have for pool maintenance!