National Scientific 20mm Crimp Seals without Septa

Unlined seals for use with all headspace vials
Grouped product items
Product Name Part # Price Qty Image
20mm Crimp Seal, Tin-plated Magnetic, Gold, 1000/pack NS-C40203M
20mm Crimp Seal, Aluminum, Silver, 1000/pack NS-C40203A
20mm Crimp Seal, Aluminum, Pressure Release, Silver, 1000/pack NS-C40206A
20mm Crimp Seal, Aluminum, Center Tab Tear-Off Design, Silver, 1000/pack NS-C40205A

* Aluminum seals are available in standard center hole, pressure release and tear-off forms

* Pressure release seals are designed to open when internal pressure exceeds 3.0+/-0.5bar

* Use tinplate seals for autosamplers employing magnetic vial transport