Waterless EverPrime® 1501 Floor Drain Trap Seal Liquid, 1 Gallon, Sewer Gas Odor Control, Dry Floor Drains, HVAC Traps, Biodegradable, Non-Evaporating, Freeze-Resistant to -20°F (Pack of 1)

Ever prime is an easy-to-use, inexpensive, biodegradable liquid trap primer that safely and quickly eliminates dangerous sewer odors escaping from drains. It is long lasting and won't evaporate or freeze at temperatures higher than -20 degrees Fahrenheit. It's also great for schools, colleges, stadiums, hospitals, and other facilities where rooms are not used for extended periods of time.