20mm Grey PTFE/Butyl Septa, 3mm, 100pcs/pk

20 mm grey PTFE/butyl septa, 3 mm thick. Choose molded Pharma-fix, molded one-ring or no-ring configurations. Supplied in packs of 100.

Sealing components for sample containers

These septa or stoppers form the sealing component in a compatible laboratory closure. The specified diameter, thickness and material construction determine which closure assembly they fit. Select the exact configuration required for the container and sampling method.

Technical specifications

Fit and material selection

Check the complete cap-and-septum specification rather than relying on the nominal vial size. Material layers and any pre-slit option are listed for each configuration. Where needle access is required, confirm that the closure exposes the septum and that the selected construction is appropriate for the instrument.

What is supplied?

Supplied quantity: 100pcs/pk. Order the required configuration using the product options above. This listing is for the specified septa or stoppers.

Availability and lead time

If this product is not currently in stock, it can still be ordered on backorder. The estimated lead time for backordered items is 10–14 working days.