Use Thermo Scientific™ SureSTART™ 20 mm stoppers with crimp vials that have a 20 mm opening and a secure push fit, including our SureSTART 20 mm crimp headspace vials (level 2).

Select level 2 products for high throughput applications, when robustness and reproducibility are key. Choose from various pack sizes of low permeability, 3 mm thick bromobutyl rubber stoppers designed to provide an effective alternative to crimp caps.