This Single-Deck, compact unit is a conventional type roller designed to hold two vessels, 108 to 121mm in diameter and up to 290mm long. The two outside rollers can be adjusted inward to accomadate bottles as small as 75mm in diameter. A maximum of 2 additional decks can be added to increase capacity. Use of unit in CO2 incubator may necessitate more frequent replacment of the motor brushes. Supplied without vessel and conforms to UL, CSA, and CE standards.