450 mL refill for PURELL ES1 Push-Style Hand Sanitizer Dispensers. An advanced gel hand sanitizer formulation that outperforms other hand sanitizers ounce-for-ounce and clinically-proven to maintain skin health. America's #1 brand of hand sanitizer with added features such as it being hypoallergenic, dye free, and dermatologist tested. AT-A-GLANCE visibility allows for you to tell when it's time for a refill with just one look. Comes SANITARY SEALED to prevent contamination during the refill process.