{"product_id":"214-3027-030-conical-microcentrifuge-tethered","title":"Conical Microcentrifuge Tubes, 0.4 mL, Polypropylene, Tethered Cap, Natural, 1000\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 0.4 mL Conical Microcentrifuge Tubes with Tethered Caps, Polypropylene, Natural, 1000\/Bag\u003c\/h1\u003e\n\u003cp\u003eThese \u003cstrong\u003e0.4 mL conical microcentrifuge tubes\u003c\/strong\u003e are molded from natural polypropylene with attached tethered caps that stay with each tube during workflows. Bench scientists rely on them for small-volume sample aliquoting, enzyme and reagent storage, and short-spin separations where cap loss and cross-contamination must be minimized.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eConical Microcentrifuge Tubes with Tethered Caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e0.4 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eTethered (attached) snap cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eNatural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSterility\u003c\/th\u003e\n\u003ctd\u003eNon-Sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e1000\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\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\u003eAliquoting small-volume nucleic acid and protein samples\u003c\/li\u003e\n\u003cli\u003eShort-spin separations in standard microcentrifuge rotors\u003c\/li\u003e\n\u003cli\u003eStorage of enzymes, primers, and reagents at refrigerated or frozen temperatures\u003c\/li\u003e\n\u003cli\u003ePCR and qPCR sample preparation and reaction setup\u003c\/li\u003e\n\u003cli\u003eReagent dilution and serial transfer at the bench\u003c\/li\u003e\n\u003cli\u003eCollection and archiving of microvolume biological specimens\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. Each bag carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available on request. These tubes are Made in USA.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these microcentrifuge tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. They are supplied non-sterile in bags of 1000. For applications requiring sterility, autoclaving or alternative sterilization should be validated against your protocol before use.\u003c\/p\u003e\n\u003ch3\u003eWhat material are the tubes made from?\u003c\/h3\u003e\n\u003cp\u003eThe tubes are molded from natural polypropylene (PP), which offers low protein binding, broad chemical tolerance for routine lab reagents, and reliable performance at refrigerated and frozen storage temperatures.\u003c\/p\u003e\n\u003ch3\u003eWhat is the benefit of the tethered cap?\u003c\/h3\u003e\n\u003cp\u003eThe tethered cap stays attached to each tube, reducing the risk of lost caps, mix-ups, and cross-contamination during pipetting, vortexing, and sample handling at the bench.\u003c\/p\u003e\n\u003ch3\u003eWhat pack size and SKU should I order?\u003c\/h3\u003e\n\u003cp\u003eThis is SKU 214-3027-030, supplied as 1000 tubes per bag. It is a single-variant listing; volume tiered pricing for institutional and grant-funded orders is available.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 0.4 mL Conical Microcentrifuge Tubes with Tethered Caps, Polypropylene, Natural, 1000\/Bag\",\n  \"sku\": \"214-3027-030\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/labsupplies.com\/products\/214-3027-030\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"42.73\",\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 microcentrifuge tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. They are supplied non-sterile in bags of 1000. For applications requiring sterility, autoclaving or alternative sterilization should be validated against your protocol before use.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What material are the tubes made from?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The tubes are molded from natural polypropylene (PP), which offers low protein binding, broad chemical tolerance for routine lab reagents, and reliable performance at refrigerated and frozen storage temperatures.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the benefit of the tethered cap?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The tethered cap stays attached to each tube, reducing the risk of lost caps, mix-ups, and cross-contamination during pipetting, vortexing, and sample handling at the bench.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What pack size and SKU should I order?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This is SKU 214-3027-030, supplied as 1000 tubes per bag. 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