{"product_id":"214-2023-010-conical-bottom-test-tube","title":"Conical Bottom Test Tubes, 4.5 mL, 12 x 75 mm, Polystyrene, Natural, 250\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 4.5 mL Conical Bottom Test Tubes, 12 x 75 mm, Polystyrene, Natural, 250\/Bag\u003c\/h1\u003e\n\u003cp\u003eThese \u003cstrong\u003e4.5 mL conical bottom test tubes\u003c\/strong\u003e are molded from clear natural polystyrene in a standard 12 x 75 mm format, giving bench scientists optical clarity for visual reads and a tapered base that consolidates small pellets. Ideal for sample aliquoting, flow cytometry prep, and routine clinical or research assay handling.\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\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\u003e250\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Quantity\u003c\/td\u003e\n\u003ctd\u003e1000\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\u003c\/li\u003e\n\u003cli\u003eAliquoting reagents, standards, and patient samples\u003c\/li\u003e\n\u003cli\u003eRoutine clinical and serology specimen handling\u003c\/li\u003e\n\u003cli\u003eSmall-volume centrifugation where pellet recovery matters\u003c\/li\u003e\n\u003cli\u003eImmunoassay and ELISA reagent dispensing\u003c\/li\u003e\n\u003cli\u003eGeneral benchtop mixing, dilutions, and short-term sample holding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003ePurchased through labsupplies.com, an authorized Caplugs® Evergreen dealer shipping from US inventory. Each bag carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Manufactured in the USA. Institutional and grant-funded tiered pricing is available for volume procurement.\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 tubes ship non-sterile, which suits general benchtop, aliquoting, and many clinical workflows where sterility is not required. For sterile applications, validate your own decontamination protocol or select a sterile alternative.\u003c\/p\u003e\n\u003ch3\u003eWhat does the 12 x 75 mm dimension refer to?\u003c\/h3\u003e\n\u003cp\u003eIt is the standard outer diameter (12 mm) by length (75 mm) format, compatible with most common 12 mm tube racks, flow cytometers, and benchtop instrumentation that accept 12 x 75 mm tubes.\u003c\/p\u003e\n\u003ch3\u003eWhat is the working volume of these tubes?\u003c\/h3\u003e\n\u003cp\u003eThe tubes are rated at 4.5 mL. The conical bottom helps concentrate small pellets and recover low-volume samples after centrifugation.\u003c\/p\u003e\n\u003ch3\u003eHow many tubes come per order?\u003c\/h3\u003e\n\u003cp\u003eTubes are packaged 250\/Bag. The listed pack reflects a case quantity of 1000 tubes for laboratory and procurement-scale ordering.\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, Natural\",\n  \"sku\": \"214-2023-010\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"material\": \"Polystyrene (PS)\",\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"70.52\",\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 test tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These tubes ship non-sterile, which suits general benchtop, aliquoting, and many clinical workflows where sterility is not required. For sterile applications, validate your own decontamination protocol or select a sterile alternative.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does the 12 x 75 mm dimension refer to?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"It is the standard outer diameter (12 mm) by length (75 mm) format, compatible with most common 12 mm tube racks, flow cytometers, and benchtop instrumentation that accept 12 x 75 mm tubes.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the working volume of these tubes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The tubes are rated at 4.5 mL. The conical bottom helps concentrate small pellets and recover low-volume samples after centrifugation.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many tubes come per order?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Tubes are packaged 250\/Bag. The listed pack reflects a case quantity of 1000 tubes for laboratory and procurement-scale ordering.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48555981701352,"sku":"2142023010E1","price":70.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/214-2023-010_88e2bf45-2ef2-407e-b175-205beda411b9.png?v=1778724515","url":"https:\/\/labsupplies.com\/products\/214-2023-010-conical-bottom-test-tube","provider":"LabSupplies.com","version":"1.0","type":"link"}