Home Pond Liner-Firestone Pond Gard-Menu Pond Liner-Firestone Pond Gard-Menu FIRESTONE POND GARD LINERS Firestone Pond Gard Rubber Liner. A 45-mil EPDM rubber flexible membrane for decorative pond applications. Safe for fish and aquatic plants. Outstanding UV and weathering resistance. 20-year manufacturer's warranty against UV breakdown. Black in color. Pond Liner-Firestone Pond Gard-UPS'able Boxes Pond Liner-Firestone Pond Gard-Motor Freight