PRO ADVANTAGE™ GLUTARALDEHYDE 28-DAY HIGH LEVEL DISINFECTANT. A long-life, 2.8% buffered glutaraldehyde that can be reused as a sterilant and high-level disinfectant for up to 28 days. Recommended for immersible and heat sensitive instruments. Contains a surfactant to enhance the disinfection process. No dilution is required. 1/GALLON, 4GN/CS. Price per Gallon.