Wheaton Black 33mm phenolic caps with attached 33mm butyl septa.

9-425 Screw Thread Autosampler HPLC Vial Caps, 9mm, Pre-slit PTFE/Silicone Septa

Nalgene Analytical Filter Unit, CN 130-4045, 0.45Ul

30 New Formulator Cap For Nalgene Bottles Septa Cap

Kimble Chase 73818-15 Flat Disc Septa, PTFE-Faced Silicone Rubber Qty: 144

Nalgene Rapid-Flow Sterile Disposable Filter Units w PES Membrane 50mm - 75mm

NALGENE 7" Desiccator w/ Tray

30 New Formulator Cap For Conical Tube Septa Cap