Ultra thin-wall PCR tubes in strips of 8 and 12. Manufactured with virgin, medical grade polypropylene — no background signal during qPCR. Standard and Low-Profile wells. Strips of flat or dome caps. Optically-clear caps for (real time) qPCR. Convenient cap and tube combination packs. Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free.