100Pcs Rubber Stoppers & Self-Sealing Injection Ports

Ensure an airtight, sterile seal for liquid cultures and medicinal storage with these 100Pcs Rubber Stoppers! Specially designed for 13mm glass bottle and vial openings, these high-grade butyl rubber stoppers feature self-sealing injection properties that allow repeated syringe needle penetrations without leaking or degrading. Highly temperature-resistant, they can be safely autoclaved or pressure-cooked for complete sterilization, making them an essential tool for mycology liquid culture propagation, laboratory experiments, essential oil compounding, and medical vial sealing.

Key Features

• Self-sealing injection ports durable rubber reseals instantly after needle withdrawal to prevent contamination

• Precise 13mm opening fit engineered specifically for standard 13mm glass vial necks and bottle openings

• High heat resistance fully autoclavable and pressure-cooker safe for reliable sterilization

• Heavy-duty butyl rubber non-reactive, chemical-resistant construction ensures long-lasting airtight sealing

• Bulk 100-piece pack generous supply for large-scale laboratory, mycology, or pharmaceutical projects

Why Choose Our Rubber Stoppers

Unlike standard rubber plugs that degrade, crack, or leak after a single needle insertion, these self-sealing butyl stoppers maintain a tight, sterile barrier through multiple injections. They are optimized for high-temperature sterilization without losing their elasticity.

Perfect For

• Mycology liquid culture jar lids, mushroom spore inoculation, and grain spawn preparation

• Laboratory chemical storage, medical vial sealing, and liquid compounding

• DIY essential oil bottles, apothecary storage, and airtight liquid sampling

Specifications

• Product Title: 100Pcs Self-Sealing Rubber Injection Port Stoppers

• Material: High-Grade Heavy-Duty Butyl Rubber

• Fit Size: Standard 13mm Glass Bottle / Vial Openings

• Features: Self-Sealing, Autoclavable, Heat-Resistant, Chemical-Proof

• Ideal Uses: Mycology Inoculation, Lab Vials, Liquid Culture, Medical Bottles

Seal your vials with confidence—claim your 100-piece rubber stopper set today.