Green Polyethylene Plug Caps for 12 mm & 16 mm Test Tubes, 1000/Bag These Globe Scientific Green Plug Caps are snap-fit polyethylene closures sized for standard 12 mm and 16 mm round-bottom and culture tubes. Ideal for sample storage, specimen transport, and color-coded sample organization, the green tint speeds visual sorting at the bench and reduces mix-ups across high-throughput racks. Technical Specifications Product Type Plug Cap (push-in closure) Size (range across variants) 12 mm and 16 mm tube ID Material Polyethylene Closure/Cap Snap-fit plug style Color Green Sterility Non-sterile Pack Size 1000 caps per bag Available Sizes Size SKU Price (per 1000/bag) 16 mm 116142G $55.50 12 mm 118139G $39.20 Applications Sealing culture tubes during sample storage and short-term refrigeration Color-coding specimen tubes by patient, study arm, or assay batch Capping serology and chemistry tubes for transport between departments Protecting reagent aliquots from dust and evaporation on the bench Organizing high-throughput racks where rapid visual identification matters Re-closing tubes after sampling in clinical and research workflows Quality & Procurement Order from labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each bag carries lot numbers supporting traceability for CAP-, CLIA-, and ISO 15189-accredited labs. Frequently Asked Questions What tube diameters do these plug caps fit? The 116142G fits 16 mm tubes and the 118139G fits 12 mm tubes. Match the cap to the outer mouth diameter of your round-bottom or culture tube for a secure snap-fit seal. Are these caps sterile? No. These polyethylene plug caps are supplied non-sterile. If your protocol requires sterility, validate an autoclave or chemical sterilization step against polyethylene's temperature limits before use. How many caps come in each bag? Each size is packaged 1000 caps per bag. The listed price is per bag for the SKU and size you select. Can the green color be used for sample coding? Yes. The consistent green tint supports color-coded organization by batch, study group, or department, helping bench staff sort racks quickly and reduce sample mix-ups. { "@context": "https://schema.org", "@type": "Product", "name": "Green Polyethylene Plug Caps for 12 mm & 16 mm Test Tubes, 1000/Bag", "brand": { "@type": "Brand", "name": "Globe Scientific" }, "description": "Globe Scientific green polyethylene snap-fit plug caps for 12 mm and 16 mm test tubes, 1000 per bag.", "offers": { "@type": "AggregateOffer", "priceCurrency": "USD", "lowPrice": "39.20", "highPrice": "55.50", "offerCount": "2", "offers": [ { "@type": "Offer", "sku": "118139G", "price": "39.20", "priceCurrency": "USD" }, { "@type": "Offer", "sku": "116142G", "price": "55.50", "priceCurrency": "USD" } ] } } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What tube diameters do these plug caps fit?", "acceptedAnswer": { "@type": "Answer", "text": "The 116142G fits 16 mm tubes and the 118139G fits 12 mm tubes. Match the cap to the outer mouth diameter of your round-bottom or culture tube for a secure snap-fit seal." } }, { "@type": "Question", "name": "Are these caps sterile?", "acceptedAnswer": { "@type": "Answer", "text": "No. These polyethylene plug caps are supplied non-sterile. If your protocol requires sterility, validate an autoclave or chemical sterilization step against polyethylene's temperature limits before use." } }, { "@type": "Question", "name": "How many caps come in each bag?", "acceptedAnswer": { "@type": "Answer", "text": "Each size is packaged 1000 caps per bag. The listed price is per bag for the SKU and size you select." } }, { "@type": "Question", "name": "Can the green color be used for sample coding?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The consistent green tint supports color-coded organization by batch, study group, or department, helping bench staff sort racks quickly and reduce sample mix-ups." } } ] }
