2-Pos Screw-Cap Tube PS 12x75 Racked

• Culture Tube, 5 mL, 12 x 75mm, PS, w/ attached 2-position screw-cap, printed graduations, sterile, 10 foam racks of 50 tubes, 500/case • MTC Bio's new DuoClick tubes feature a unique, patent pending screw closure system. • DuoClick tubes completely eliminate the excess force, splashing and general frustration of traditional snap-cap culture tubes. • The advanced cap design includes two distinct positions for aerobic and anaerobic culturing (see flow-chart below). • Just rotate the cap 1/4 turn to the first click to secure the cap in the aerobic position. • Or, rotate it another 1/2 turn past the second click for a leakproof, airtight seal for anaerobic culturing. • DuoClick tubes are available gamma sterilized, with screw caps attached, and in our exclusive ready-to- use rack packaging. • New patent pending screw-cap! • Aerobic culturing at first click • Anaerobic after second click • Printed graduations • Flat, markable screw-cap.