The 48WRG Cold Weather Rodent Tray is the only low-temperature glue tray available, the company says. The result of years of research and development, the tray is specially formulated to maintain effectiveness in temperatures as low as 0◦F. This makes the tray ideal for protecting unheated areas like garages, attics, sheds, crawlspaces, barns and walk-in refrigerators. In fact, the “WRG” in the product name stands for “Walk-In Refrigerator Glue.” Rodents often pass through these unheated areas on their way indoors in the fall and winter, and this is where the 48WRG can be most effective. This season, stop rodents cold with the 48WRG Cold Weather Rodent Tray.