DWK Life Sciences (Kimble) Polypropylene Screw Thread Caps with Welded PTFE-Faced Silicone Liners
Closed-top popylpropylene closures are ideal for repeated autoclaving. Welded liner technology eliminates the possibility of glue contamination, while the PTFE faced/general purpose white rubber liners are highly resistant to chemical effects. Cat.No. 6-73808-24400 caps are for EPA water analysis vials.