Hplc Vial Caps found in: LC Certified Vial Kits, Target DP 9mm Vial Closures, Crimp Neck Vial Kits, N 11, SEPARA® Syringeless Filter Vials, 13-425 Closures.. thread vials Pre-assembled septa allows for vacuum release where more than half of vial contents will be removed Integral septum caps are an economical choice for HPLC applications Bonded septa caps