{"product_id":"caplugs-220-2448-01k-15ml-centrifuge-tube-natural","title":"Conical Centrifuge Tubes, 15 mL, Polystyrene, Threaded, Natural, 1000\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 15 mL Threaded Conical Centrifuge Tubes, Polystyrene, Natural, Non-Sterile, 1000\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003e15 mL threaded conical centrifuge tubes\u003c\/strong\u003e from Caplugs® Evergreen deliver consistent fit and clarity for routine sample prep, cell pelleting, and reagent aliquoting. Molded from polystyrene with a natural finish, these non-sterile tubes suit high-throughput benches that process large sample volumes without sterility requirements.\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\u003eThreaded Conical Centrifuge Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e15 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolystyrene (PS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\/Cap\u003c\/td\u003e\n\u003ctd\u003eThreaded (screw-style neck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eNatural\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\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCell pelleting and resuspension in routine cell culture workflows\u003c\/li\u003e\n\u003cli\u003eAliquoting reagents, buffers, and standards for bench-scale assays\u003c\/li\u003e\n\u003cli\u003eSample collection and short-term storage of non-sterile specimens\u003c\/li\u003e\n\u003cli\u003eDensity gradient and clarification spins within rated g-forces\u003c\/li\u003e\n\u003cli\u003eReagent preparation in teaching and high-volume QC labs\u003c\/li\u003e\n\u003cli\u003eBulk dilution and mixing steps prior to downstream analysis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003elabsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are made in the USA, and each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited labs. Institutional and grant-funded tiered pricing is available — contact us for volume quotes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these centrifuge tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These tubes ship non-sterile and are intended for applications that do not require pre-sterilized labware. Verify your protocol's sterility requirements before use.\u003c\/p\u003e\n\u003ch3\u003eWhat material are the tubes made from?\u003c\/h3\u003e\n\u003cp\u003eThe vessels are molded from polystyrene (PS), which provides good optical clarity for visual inspection of pellets and sample volumes. Confirm reagent compatibility with PS for your specific chemistry.\u003c\/p\u003e\n\u003ch3\u003eDo the tubes include caps?\u003c\/h3\u003e\n\u003cp\u003eThe tubes feature a threaded conical design with a screw-style neck. Confirm closure inclusion and thread compatibility against your existing caps before ordering at volume.\u003c\/p\u003e\n\u003ch3\u003eHow are the tubes packaged?\u003c\/h3\u003e\n\u003cp\u003eThey are supplied 1000 tubes per bag. Each bag carries lot numbers to support traceability in accredited laboratory environments.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 15 mL Threaded Conical Centrifuge Tubes, Polystyrene, Natural, Non-Sterile, 1000\/Bag\",\n  \"sku\": \"220-2448-01K\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/labsupplies.com\/products\/220-2448-01K\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"125.38\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"labsupplies.com\"\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    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these centrifuge tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These tubes ship non-sterile and are intended for applications that do not require pre-sterilized labware. 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