Gc Headspace Vial found in: Headspace 20mm Crimp Seals with Septa, 22 mL, 20 mm, Headspace Screw Top Vial with P logo, Supplies For , A and .. 20 mL Clear Glass Screw Top Vials (100), PTFE/Butyl (red) Septa with Steel Magnetic Screw Caps (100), PTFE/Silicone (white) Septa with Steel Magnetic Screw Caps (100), Needle Seal Assemblies (2), O-Rings (10), Pressure Gauge with