AutoSampler Vial, Caps & Inserts Guide 52 page catalog for vial system that fits all HPLC & GC AutoSamplers. Caps, Screw Top with PreSlit Septa; Crimp Caps colors are availabele, GC or HPLC. Crimp Top Vials standard GC or HPLC, 1.5mL. Fused-Insert Vials RSA™ Glass, Screw Top, Wide & Precision Tip. HeadSpace Vials & Caps, screw top.