These 18 place polypropylene hydrometer racks are specially designed to safeguard glass hydrometers. The three tiered rack with handles allows easy transport and storage of hydrometers.
Top two plates have 1" diameter holes while the bottom plate has wells which taper from 1"" to 3/8".
WARNING: This product can expose you to chemicals including Ethylene Oxide and Dioxane which are known to the state of California to cause cancer, birth defects and other reproductive harm. For more information: www.p65warnings.ca.gov