{"product_id":"globe-cap-116142g","title":"Test Tube Plug Caps, Polyethylene, Green — 12 mm \u0026 16 mm, 1000\/Bag | Globe Scientific","description":"\u003ch2\u003eGreen Polyethylene Plug Caps for 12 mm \u0026amp; 16 mm Test Tubes, 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese \u003cstrong\u003eGlobe Scientific Green Plug Caps\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePlug Cap (push-in closure)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize (range across variants)\u003c\/td\u003e\n\u003ctd\u003e12 mm and 16 mm tube ID\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\/Cap\u003c\/td\u003e\n\u003ctd\u003eSnap-fit plug style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility\u003c\/td\u003e\n\u003ctd\u003eNon-sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e1000 caps per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Sizes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003ePrice (per 1000\/bag)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e116142G\u003c\/td\u003e\n\u003ctd\u003e$55.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003ctd\u003e118139G\u003c\/td\u003e\n\u003ctd\u003e$39.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSealing culture tubes during sample storage and short-term refrigeration\u003c\/li\u003e\n\u003cli\u003eColor-coding specimen tubes by patient, study arm, or assay batch\u003c\/li\u003e\n\u003cli\u003eCapping serology and chemistry tubes for transport between departments\u003c\/li\u003e\n\u003cli\u003eProtecting reagent aliquots from dust and evaporation on the bench\u003c\/li\u003e\n\u003cli\u003eOrganizing high-throughput racks where rapid visual identification matters\u003c\/li\u003e\n\u003cli\u003eRe-closing tubes after sampling in clinical and research workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eOrder 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. Institutional and grant-funded tiered pricing is available for volume procurement and standing orders.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat tube diameters do these plug caps fit?\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eAre these caps sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. 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.\u003c\/p\u003e\n\u003ch3\u003eHow many caps come in each bag?\u003c\/h3\u003e\n\u003cp\u003eEach size is packaged 1000 caps per bag. The listed price is per bag for the SKU and size you select.\u003c\/p\u003e\n\u003ch3\u003eCan the green color be used for sample coding?\u003c\/h3\u003e\n\u003cp\u003eYes. 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