Tristel ULT (IMAGE) Dowling & Dennis PR Caption Tristel ULT is a high-level disinfectant delivered in a novel dual-compartment bottle that produces a precise and consistent dose of chlorine dioxide foam. Credit Parker Laboratories Inc. Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.