Ensure maximum sample integrity and flawless autosampler performance in your Gas Chromatography (GC) and headspace analysis with these premium 20mm aluminum crimp caps. Engineered specifically for demanding laboratory environments, these caps provide a secure, leak-proof seal while maintaining exceptional chemical compatibility.

📌 PREMIUM FEATURES & PRACTICAL APPLICATIONS:

• Autosampler Optimized (10mm Open-Top): Features a precision-cut 10mm center hole, providing a wide target area that allows autosampler needles to penetrate smoothly and accurately without bending or jamming.

• Ultimate Chemical Resistance: The nature PTFE layer directly faces the sample, acting as a highly inert barrier against aggressive solvents, acids, and volatile chemical compounds.

• Superior Resealability: The nature silicone backing provides outstanding elasticity. It automatically and effectively reseals the puncture hole immediately after needle extraction, strictly preventing volatile sample evaporation during prolonged analysis.

⚙️ DETAILED TECHNICAL SPECIFICATIONS:

• Product Type: Crimp aluminum cap with pre-assembled septa

• Closure / Neck Finish: 20mm Crimp Headspace

• Cap Material: High-quality Silver Aluminum

• Septa Construction: Nature PTFE / Nature Silicone

• Design Profile: Open top with a 10mm center hole

• Compatibility: Exclusively designed to fit standard 20mm crimp headspace vials.

💡 AVAILABLE BULK PACKAGING OPTIONS: We offer flexible wholesale packaging to suit your laboratory's specific throughput needs. Please carefully select your required quantity from the variation menu:

• 300 pcs (Ideal for small-scale or specialized testing)

• 500 pcs (Standard choice for routine daily analysis)

• 1000 pcs (Best value for high-throughput testing facilities)

⚠️ IMPORTANT PURCHASING NOTES:

• Accessories Not Included: You are purchasing the aluminum caps with pre-assembled septa only. Headspace vials and crimping tools are strictly sold separately unless explicitly listed as a bundle.

• Strict Safety Restriction: Approved strictly for laboratory research and analytical use only. Do not use for any medical injection, clinical, or hypodermic purposes under any circumstances.