{"product_id":"globe-cap-116142","title":"Test Tube Plug Caps, White Polyethylene Push-In — 12 mm \u0026 16 mm, 1000\/Bag | Globe Scientific","description":"\u003ch2\u003eWhite Polyethylene Push-In Plug Caps for 12 mm and 16 mm Test Tubes, 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThese \u003cstrong\u003eGlobe Scientific Plug Caps\u003c\/strong\u003e deliver a secure, push-in closure for standard 12 mm and 16 mm test tubes and culture tubes. Molded from flexible white polyethylene, each cap seats firmly to limit evaporation and spillage during sample storage, specimen transport, and routine tube handling on the bench.\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\u003ePush-in plug cap\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 diameter\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\u003ePush-in plug style, white\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\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e116142\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\u003e118139W\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 incubation and short-term storage\u003c\/li\u003e\n\u003cli\u003eCapping serum and aliquot tubes for refrigerated sample holding\u003c\/li\u003e\n\u003cli\u003eSecuring tubes during specimen collection and transport\u003c\/li\u003e\n\u003cli\u003eReducing evaporation in dilution and reagent prep workflows\u003c\/li\u003e\n\u003cli\u003eClosing tubes in clinical and microbiology bench setups\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose replacement closures for 12 mm and 16 mm glass or plastic tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003elabsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Bags carry lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our team for volume quotes on multi-bag orders.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhich tube diameters do these plug caps fit?\u003c\/h3\u003e\n\u003cp\u003eSKU 116142 fits 16 mm tubes and SKU 118139W fits 12 mm tubes. Match the cap size to your tube's outer diameter for a snug push-in seal.\u003c\/p\u003e\n\u003ch3\u003eWhat material are the caps made from?\u003c\/h3\u003e\n\u003cp\u003eBoth sizes are molded from white polyethylene, a flexible plastic that compresses slightly on insertion to grip the tube rim.\u003c\/p\u003e\n\u003ch3\u003eAre these caps sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These plug caps are supplied non-sterile and are intended for general laboratory storage, transport, and bench use.\u003c\/p\u003e\n\u003ch3\u003eHow are the caps packaged and sold?\u003c\/h3\u003e\n\u003cp\u003eEach SKU ships as a bag of 1000 caps, and the listed price is per 1000-count bag. Tiered pricing applies to larger institutional orders.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Globe Scientific Test Tube Plug Caps, White Polyethylene, 12 mm \u0026 16 mm\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Globe Scientific\"},\n  \"material\": \"Polyethylene\",\n  \"offers\": {\n    \"@type\": \"AggregateOffer\",\n    \"priceCurrency\": \"USD\",\n    \"lowPrice\": \"39.20\",\n    \"highPrice\": \"55.50\",\n    \"offerCount\": \"2\",\n    \"offers\": [\n      {\"@type\": \"Offer\", \"sku\": \"116142\", \"price\": \"55.50\", \"priceCurrency\": \"USD\"},\n      {\"@type\": \"Offer\", \"sku\": \"118139W\", \"price\": \"39.20\", \"priceCurrency\": \"USD\"}\n    ]\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\"@type\": \"Question\", \"name\": \"Which tube diameters do these plug caps fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"SKU 116142 fits 16 mm tubes and SKU 118139W fits 12 mm tubes. 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