VIALKY - Pragolab. HPLC/GC Certified Vial Kit: 1.5ml Short Thread Vial, am-ber glass, 1st hydrolytic class, label; UltraClean Closure: 9mm PP Short Thread Cap, blue, centre hole; Silicone white/PTFE red, 55° shore A, 1.0mm LC/MS and GC/MS Certified Vial Kit: 1.5ml Short Thread SureStop™ Vial, 32 x 11.6mm, clear glass, wide -rier; Ultra High Performance Seal