Pre-assembled Headspace GC Crimp Caps for 20mm Vials
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Best Overall Value Caps, 20mm
PTFE-faced trans-blue silicone rubber septa.
1,000 Caps Per Case
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General Purpose, 20mm
PTFE-faced Gray Butyl Rubber Septum.
1,000 Caps Per Case
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High Temperature Caps, 20mm
Standard center hole with tan PTFE-faced white silicone septa.
1,000 Caps Per Case
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Molded Hi-Performance Caps, 20 mm
Standard center hole with gray PTFE-faced black molded butyl rubber septa.
1,000 Caps Per Case
Pre-assembled Pressure Released Headspace Crimp Caps for 20mm Vials
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Best General Purpose Pressure Release Caps, 20mm
PTFE-faced gray butyl rubber septa.
1,000 Caps Per Case
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Best Overall Value Pressure Release Caps, 20mm
PTFE-faced gray butyl rubber septa.
1,000 Caps Per Case
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High Performance Pressure Release Cap
PTFE-faced Butyl Rubber Septum with Sealing Ring.
1,000 Caps Per Case
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High Temperature Pressure Release Caps, 20mm
PTFE-faced gray butyl rubber septa.
1,000 Caps Per Case