There are three distinctive ranges of Day Impex Dilvac Dewar flasks, all utilising the proven borosilicate glass inner vessels. Offered in plastic; stove-enamalled steel and hygienic satin finish stainless steel with capacities of 200cc-10 litres. Designed for safe use of liquid gases, all Dilvac Dewar flasks are manufactured to exacting standards and represent the highest quality units available today for laboratory use. The Dewars are designed with practicality and safety in mind and many of the range of 22 models have features such as vented, clamped lids, carrying handles and rubber-cushioned bases.