{"product_id":"214-2023-r10-conical-bottom-test-tube","title":"Conical Bottom Test Tubes, 4.5 mL Polystyrene (PS), 12 x 75 mm, Red, 250\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 4.5 mL Conical Bottom Test Tubes, 12 x 75 mm, Polystyrene (PS), Red, 250\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 4.5 mL Conical Bottom Test Tubes\u003c\/strong\u003e deliver clear, rigid polystyrene construction in a standard 12 x 75 mm format for routine bench work. Lab teams rely on these red-tinted tubes for sample aliquoting, flow cytometry prep, and small-volume reagent handling where the conical base aids cell pelleting and complete recovery.\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\u003eConical Bottom Test Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e4.5 mL, 12 x 75 mm\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\u003eColor\u003c\/td\u003e\n\u003ctd\u003eRed\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\u003e250\/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\u003eFlow cytometry sample preparation and staining workflows\u003c\/li\u003e\n\u003cli\u003eCell pelleting where the conical base improves recovery\u003c\/li\u003e\n\u003cli\u003eSmall-volume serum, plasma, and reagent aliquoting\u003c\/li\u003e\n\u003cli\u003eColor-coded sample sorting and rack organization using the red tint\u003c\/li\u003e\n\u003cli\u003eRoutine clinical and research bench transfers\u003c\/li\u003e\n\u003cli\u003eShort-term sample storage at ambient or refrigerated temperatures\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, and these tubes are Made in USA. Each bag carries a lot number to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these test tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These 4.5 mL polystyrene tubes ship non-sterile, making them well suited for general bench tasks, sample prep, and applications that do not require pre-sterilized labware.\u003c\/p\u003e\n\u003ch3\u003eWhat are the dimensions and capacity?\u003c\/h3\u003e\n\u003cp\u003eEach tube measures 12 x 75 mm with a 4.5 mL working capacity, matching the standard format used across most 12 mm tube racks and flow cytometry instruments.\u003c\/p\u003e\n\u003ch3\u003eDo these tubes include caps?\u003c\/h3\u003e\n\u003cp\u003eThis listing covers the tubes only; no closures are included in the spec. Caps and stoppers sized for 12 mm tubes can be ordered separately to match your workflow.\u003c\/p\u003e\n\u003ch3\u003eHow many tubes come per pack?\u003c\/h3\u003e\n\u003cp\u003eTubes are supplied 250 per Bag. The listed price reflects one bag of 250 conical bottom polystyrene tubes.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 4.5 mL Conical Bottom Test Tubes, 12 x 75 mm, Polystyrene (PS), Red, 250\/Bag\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Caplugs® Evergreen\"},\n  \"sku\": \"214-2023-R10\",\n  \"countryOfOrigin\": \"USA\",\n  \"material\": \"Polystyrene (PS)\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"70.52\",\n    \"priceCurrency\": \"USD\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"labsupplies.com\"}\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\": \"Are these test tubes sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. These 4.5 mL polystyrene tubes ship non-sterile, making them well suited for general bench tasks, sample prep, and applications that do not require pre-sterilized labware.\"}},\n    {\"@type\": \"Question\", \"name\": \"What are the dimensions and capacity?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each tube measures 12 x 75 mm with a 4.5 mL working capacity, matching the standard format used across most 12 mm tube racks and flow cytometry instruments.\"}},\n    {\"@type\": \"Question\", \"name\": \"Do these tubes include caps?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This listing covers the tubes only; no closures are included in the spec. Caps and stoppers sized for 12 mm tubes can be ordered separately to match your workflow.\"}},\n    {\"@type\": \"Question\", \"name\": \"How many tubes come per pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Tubes are supplied 250 per Bag. The listed price reflects one bag of 250 conical bottom polystyrene tubes.\"}}\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48555994546408,"sku":"2142023R10E1","price":70.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/214-2023-R10_b21ae9d1-40e4-4b11-b8c6-00e923711869.png?v=1778724699","url":"https:\/\/labsupplies.com\/products\/214-2023-r10-conical-bottom-test-tube","provider":"LabSupplies.com","version":"1.0","type":"link"}