Glas-col rotator with variable speed adjusts mixing action from a gentle slosh to rapid agitation. Supplied with 14" friction drive test tube head accommodating 31 tubes from 10-18mm diameter or 16 tubes from 20-30mm diameter. 0.17-8.3rpm, 120V.
Optional twin-disk test tube head accommodates 22 tubes up to 25mm diameter or 44 tubes up to 16mm diameter. Optional tissue culture head accommodates up to 108 mini tissue culture tubes up to 16mm in diameter.