Select Level 1 Aijiren Tech™ SureSTART™ 11 mm Crimp Caps for chromatography approved, cost optimized products that are suitable for everyday analyses and 20 mL Headspace Crimp Neck Vial N 20 outer diameter. Details · Additional Information · Also Purchased · Crimper for 20 mm Aluminium Caps, electronic · Polypropylene vial rack