Omni-Cleaner XL is a mild, slightly alkaline liquid compound used to clean grease and grime from autoclaves. It also retards the accumulation of scale deposits when used as directed; useful in all autoclaves. Omni-Cleaner XL is the best product available for cleaning the inside of steam-pressure type sterilizers/autoclaves. You should clean your sterilizer on a regular basis to assure proper functioning. This product has 16 ounces of cleaner, enough to clean your autoclave from 2 to 3 times. Made in U.S.A.