{"product_id":"214-2003-010-round-bottom-test-tube","title":"Round Bottom Test Tubes, 4.0 mL Polystyrene, 10 x 75 mm, Natural, 250\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 4.0 mL Round Bottom Test Tubes, 10 x 75 mm, Polystyrene, Natural, 250\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 4.0 mL Round Bottom Test Tubes\u003c\/strong\u003e deliver clear, dimensionally consistent polystyrene vessels in a 10 x 75 mm format trusted for routine sample handling. Bench scientists rely on these tubes for flow cytometry sample prep, general clinical aliquoting, and reagent dispensing where optical clarity and reproducible geometry matter.\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\u003eRound Bottom Test Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e4.0 mL, 10 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\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 loading and staining workflows\u003c\/li\u003e\n\u003cli\u003eGeneral clinical and research sample aliquoting\u003c\/li\u003e\n\u003cli\u003eReagent and buffer dispensing at the bench\u003c\/li\u003e\n\u003cli\u003eShort-term sample storage and transport\u003c\/li\u003e\n\u003cli\u003eColorimetric and turbidity reading prep\u003c\/li\u003e\n\u003cli\u003eTeaching lab and routine QC procedures\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 USA, and every bag carries lot numbers 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 and standing-order setup.\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 4.0 mL polystyrene tubes are supplied non-sterile, making them well suited for general bench work, reagent handling, and applications that do not require an aseptic vessel out of the bag.\u003c\/p\u003e\n\u003ch3\u003eWhat are the exact tube dimensions?\u003c\/h3\u003e\n\u003cp\u003eEach tube measures 10 x 75 mm with a round bottom and a nominal 4.0 mL capacity, matching standard rack and instrument carrier openings designed for the 12 x 75 mm class footprint.\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 excellent optical clarity for visual inspection and instrument reading. Note that PS has limited resistance to many organic solvents.\u003c\/p\u003e\n\u003ch3\u003eHow many tubes come in each pack?\u003c\/h3\u003e\n\u003cp\u003eTubes are packaged 250 per bag. The listed price is per pack of 250\/Bag, and bags carry lot numbers for traceability across accredited workflows.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 4.0 mL Round Bottom Test Tubes, 10 x 75 mm, Polystyrene, Natural, 250\/Bag\",\n  \"sku\": \"214-2003-010\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"51.93\",\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 4.0 mL polystyrene tubes are supplied non-sterile, making them well suited for general bench work, reagent handling, and applications that do not require an aseptic vessel out of the bag.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the exact tube dimensions?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each tube measures 10 x 75 mm with a round bottom and a nominal 4.0 mL capacity, matching standard rack and instrument carrier openings designed for the 12 x 75 mm class footprint.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What material are the tubes made from?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The vessels are molded from polystyrene (PS), which provides excellent optical clarity for visual inspection and instrument reading. Note that PS has limited resistance to many organic solvents.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many tubes come in each pack?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Tubes are packaged 250 per bag. The listed price is per pack of 250\/Bag, and bags carry lot numbers for traceability across accredited workflows.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48555960598760,"sku":"2142003010E1","price":51.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/214-2012-010_02_82e4824f-7cb4-4345-bdaa-98f204b3aa29.jpg?v=1778724054","url":"https:\/\/labsupplies.com\/products\/214-2003-010-round-bottom-test-tube","provider":"LabSupplies.com","version":"1.0","type":"link"}