Vials, LC, 96-pos Deep Well MTP. 2 mL, Square Well, U Bottom, 72/pk. E-mail this product to a friend. Polypropylene 96-well MTP. Square well, round bottom, approx. 2mL volume. Pre-slit PTFE/silcone mat (12 or 72/pk) is available to reseal wells and protect labile samples.