AquaWeeder Pond Mat 10’ x 33’ Mats - Chemical Free Aquatic Weed Control - Lake, Pond, Stream Weed Control Mat that stops Aquatic weeds from establishing. A new innovation in aquatic weed control, the AquaWeeder Pond Mat will restore the usability of your Lake, Pond, or Steam fronts with no chemicals. Just Sink and Secure over the area you want weed control and the AquaWeeder Weed Control mat does the rest. Its high specific gravity helps it sink rapidly to the bottom. Chemically and biologically resistant Resists tearing, stretching, and piercing Allows gases to escape Easy installation NO Ballooning, the problem that plagues other types of membranes - 10’ x 33’ Mats