Wheaton Science Products' economic Small Bottle Bench Top Roller Culture System allows inexpensive entry into the roller culture apparatus technology. Benefits of the Small Bench Top Roller Culture System are the increased surface area, gentle agitation and improved gas exchange when cells are rotated out of the medium. This system can accommodate bottle sizes 108 to 121 mm in diameter. This system can facilitate rotation speeds ranging from 0.1 to 3.8 rpm. It can withstand the addition of two additional decks for a total bottle capacity of 6 bottles. All models are CE/UL/CSA marked for international use and are available with different electrical plug configurations. Dimensions: 12-1/4” x 12-3/4” x 7-1/8”. Weight: 18 lb. Maximum temperature for use: 40°C