Quick view Retort Clamp, 3-finger clamp, Small design This small version retort clamp or 3-finger clamp may be used to hold a small flask, test tube, burette, condenser or any other tubular object with diameter of less than 30 millimeters. It can be connected to a support stand using a right angle clamp... MSRP: Was: Now: $6.99 Add to Cart Compare