Free sample clear vial caps for hplc system-aijiren Vials HPLC and GC Vials, Caps, Septas and Inserts Guide 2mL HPLC Clear Vials, Screw Part 5 Autosamper Vial Product List (Bestsellers) 1. Screw 8-425 (8mm, N8) HPLC Vial, Cap, Septa and Material: USP Type 1, Class A, 33 Borosilicate Glass Volume: 2ml