Made of either polystyrene or polypropylene
These natural color 12 x 75 mm tubes are identical to SIM-T400-3 & SIM-T400-3A but are neatly packaged with the same orientation in boxes of 125. SIM-T400-3ALST 12 mm x 75 mm tubes are made with a specially formulated polypropylene providing a low surface tension to obtain optimum sample yield. No lubricants have to be added, thereby eliminating the danger of sample contamination. The other tubes are specially built with 2-position polyethylene snap cap.
