{"product_id":"self-sealing-silicone-rubber-stoppers-injection-ports-13mm-glass-bottles","title":"100x Self-Sealing Silicone Rubber Stoppers for 13mm Bottles","description":"\n\u003ch2\u003eSilicone Self-Sealing Rubber Stoppers for 13mm Glass Bottles — 100-Pack\u003c\/h2\u003e\n\u003cp\u003eKeep your glass bottles securely sealed with these \u003cstrong\u003eself-sealing silicone rubber injection port stoppers\u003c\/strong\u003e. Designed specifically for 13mm glass vials and bottles, each stopper features a self-sealing design that allows needles or cannulas to pierce through and reseal automatically — making them ideal for lab use, homebrewing, fermentation, essential oil storage, DIY projects, and more. The soft, flexible silicone construction ensures a snug, airtight fit every time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Sealing Design:\u003c\/strong\u003e Piercing port reseals automatically after each use, maintaining a secure, airtight closure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality silicone rubber for durability, flexibility, and chemical resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits 13mm Glass Bottles:\u003c\/strong\u003e Precision-sized for a reliable, leak-resistant fit on standard 13mm neck vials and bottles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrey Color:\u003c\/strong\u003e Neutral grey tone for easy identification and professional appearance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBulk Pack of 100:\u003c\/strong\u003e Generous quantity perfect for labs, workshops, home brewing, or DIY enthusiasts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Compatible with syringes, cannulas, and needles for injection port applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicone Rubber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Grey\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Fits 13mm glass bottle necks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 100 pieces per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLaboratory and scientific sample storage\u003c\/li\u003e\n  \u003cli\u003eHome brewing and fermentation setups\u003c\/li\u003e\n  \u003cli\u003eEssential oil and liquid storage vials\u003c\/li\u003e\n  \u003cli\u003eDIY crafting and resin projects\u003c\/li\u003e\n  \u003cli\u003ePharmaceutical and medical-adjacent hobbyist use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe handling of laboratory supplies and chemical storage, visit the \u003ca href=\"https:\/\/www.osha.gov\/laboratories\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Laboratory Safety resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What size glass bottles do these rubber stoppers fit?\u003c\/h4\u003e\n\u003cp\u003eA: These self-sealing silicone rubber stoppers are designed to fit 13mm glass bottle necks and vials, providing a snug, airtight seal for secure storage and injection port access.\u003c\/p\u003e\n\u003ch4\u003eQ: What are self-sealing injection port stoppers used for?\u003c\/h4\u003e\n\u003cp\u003eA: Self-sealing injection port stoppers are commonly used in laboratory settings, homebrewing, fermentation, DIY projects, and essential oil storage. The self-sealing design allows a needle or cannula to pierce through and the stopper automatically reseals, keeping contents secure.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these stoppers reusable?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the high-quality silicone rubber construction allows for repeated use. The self-sealing port is designed to reseal after each piercing, though replacement is recommended if the stopper shows signs of wear or deformation over extended use.\u003c\/p\u003e\n\u003ch4\u003eQ: How many stoppers come in each pack?\u003c\/h4\u003e\n\u003cp\u003eA: Each pack contains 100 silicone rubber self-sealing stoppers, making this an excellent value for bulk laboratory, brewing, or DIY supply needs.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size glass bottles do these rubber stoppers fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These self-sealing silicone rubber stoppers are designed to fit 13mm glass bottle necks and vials, providing a snug, airtight seal for secure storage and injection port access.\"}}, {\"@type\": \"Question\", \"name\": \"What are self-sealing injection port stoppers used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Self-sealing injection port stoppers are commonly used in laboratory settings, homebrewing, fermentation, DIY projects, and essential oil storage. 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