{"product_id":"222-3010-b2n-screw-cap-only","title":"15 mL Centrifuge Tubes, Screw Caps, HDPE, Blue — 222-3010-B2N | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eQuick Reference\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e222-3010-B2N\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eProduct\u003c\/th\u003e \u003ctd\u003eBlue screw caps for transport vials\/15 mL centrifuge tubes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003eHigh-Density Polyethylene (HDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eBlue\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor Use\u003c\/th\u003e \u003ctd\u003ecolor-coded cap identification — Blue cap tubes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e1000\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eSterile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eOrigin\u003c\/th\u003e \u003ctd\u003eMade in USA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$76.39\/Bag ($0.0764\/cap)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen \u003cstrong\u003e222-3010-B2N\u003c\/strong\u003e is a \u003cstrong\u003eSterile HDPE Blue Screw Cap\u003c\/strong\u003e compatible with transport vials and 15 mL centrifuge tubes, 1000\/Bag. Blue caps enable color-coded tube identification in workflows where tube content, collection time point, or patient cohort is differentiated by cap color — a standard practice in high-volume clinical specimen processing. The blue cap is otherwise identical to the Natural cap (222-3010-02N) in material (HDPE), dimensions, and thread specification — the color is purely for visual identification.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHigh-Density Polyethylene (HDPE)\u003c\/strong\u003e: low extractables, leak-resistant threaded seal, broad chemical resistance across aqueous and mild organic matrices. BPA-free, phthalate-free, FDA-compliant, \u003c\/p\u003e \u003cp\u003eProcurement economics: \u003cstrong\u003e$76.39\/Bag (1000 caps)\u003c\/strong\u003e, \u003cstrong\u003e$0.0764\/cap\u003c\/strong\u003e. Color set: \u003cstrong\u003e222-3010-02N\u003c\/strong\u003e (Natural HDPE Caps 1000\/Bag); \u003cstrong\u003e222-3010-G2N\u003c\/strong\u003e (Green HDPE Caps 1000\/Bag); Natural: 222-3010-02N. LabSupplies.com ships from USA inventory, typically same business day.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCaplugs Item #\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eProduct\u003c\/th\u003e \u003ctd\u003eSterile Blue HDPE screw caps\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003eHigh-Density Polyethylene (HDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eBlue\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor Purpose\u003c\/th\u003e \u003ctd\u003eVisual tube identification \/ color-coding\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eThread\u003c\/th\u003e \u003ctd\u003eCompatible with Caplugs Evergreen transport vials and 15 mL conical tubes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eSterile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e1000\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBPA \/ Phthalate\u003c\/th\u003e \u003ctd\u003eBPA-Free, Phthalate-Free, Latex-Free\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCountry of Origin\u003c\/th\u003e \u003ctd\u003eUSA \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$76.39\/Bag ($0.0764\/cap)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eHDPE Blue Screw Cap Applications\u003c\/h2\u003e \u003cp\u003eThe blue HDPE cap is compatible with the following Caplugs Evergreen transport vials and 15 mL centrifuge tubes.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003cth\u003eSetting \/ Configuration\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eColor-coded tube identification\u003c\/th\u003e \u003ctd\u003eMulti-tube specimen workflow\u003c\/td\u003e \u003ctd\u003eBlue cap = visual identification of tube content or cohort\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTransport vial capping\u003c\/th\u003e \u003ctd\u003eCap onto 222-3005\/3007\/3010 vials\u003c\/td\u003e \u003ctd\u003eHDPE Blue cap: leak-resistant threaded seal\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003e15 mL conical capping\u003c\/th\u003e \u003ctd\u003eCap onto sterile 15 mL centrifuge tubes\u003c\/td\u003e \u003ctd\u003eBlue cap for visual tube differentiation in BSC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eReplacement caps\u003c\/th\u003e \u003ctd\u003eReplace damaged caps on existing tubes\u003c\/td\u003e \u003ctd\u003e1000\/Bag: economical replacement cap supply\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBatch\/lot color coding\u003c\/th\u003e \u003ctd\u003eMultiple specimen batches in same run\u003c\/td\u003e \u003ctd\u003eBlue cap distinguishes batch from natural\/blue caps\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eShift or time-point marking\u003c\/th\u003e \u003ctd\u003eTime-stamped specimen collection\u003c\/td\u003e \u003ctd\u003eBlue cap = specific time point or collection shift\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eDual-use stocking\u003c\/th\u003e \u003ctd\u003eOne cap SKU, two tube formats\u003c\/td\u003e \u003ctd\u003eCompatible with both transport vials and 15 mL conicals\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eChemical Resistance — High-Density Polyethylene (HDPE)\u003c\/h2\u003e \u003cp\u003eCompatibility reference for HDPE at typical laboratory conditions.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eReagent \/ Condition\u003c\/th\u003e \u003cth\u003eCompatibility\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eHDPE inert across pH 2–12.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBoric acid preservative\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eCompatible with standard urine transport preservatives.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDilute HCl \/ H2SO4 (\u0026lt;10%)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eCompatible with acid preservatives.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMethanol \/ ethanol (\u0026lt;50%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eShort-term compatible.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSerum \/ plasma \/ urine\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eStandard clinical matrix; low extractables.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eTransport media (UTM\/VTM)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eHDPE compatible with standard transport media.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCold storage (2–8°C)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eStandard refrigerator\/ice-pack transport.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDichloromethane\u003c\/td\u003e \u003ctd\u003eNot Compatible\u003c\/td\u003e \u003ctd\u003eCauses swelling; do not use.\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eClinical \u0026amp; Research Laboratory Applications\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen sterile HDPE blue screw caps serve clinical laboratories and specimen transport kit manufacturers requiring color-coded cap supply for visual tube identification. High-throughput clinical labs running multiple specimen types simultaneously in the same BSC or processing bench use colored caps to differentiate tube contents at a glance without reading labels — blue caps for one specimen type, natural caps for another, green caps for a third. Blue cap tubes are also used in blood bank and hematology settings where blue-top tube conventions are standard for coagulation specimen identification.\u003c\/p\u003e \u003ch2\u003eU.S. Manufacturing, Quality \u0026amp; Institutional Procurement\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen products are manufactured in the United States under ISO 9001 quality management from FDA-compliant, food-contact-grade resins. BPA-free, phthalate-free, and latex-free, with material-disclosure documentation supporting CAP, CLIA, and ISO 15189 laboratory accreditation audits.\u003c\/p\u003e \u003cp\u003eLabSupplies.com is an authorized dealer for the full Caplugs Evergreen catalog and ships directly from USA inventory — typically same business day for stocking SKUs. We offer below retail pricing on volume orders, tiered institutional and academic pricing, and direct support for grant-funded laboratories and government procurement channels. Lab managers and procurement officers can \u003ca href=\"#request-sample\"\u003erequest a written quote or speak with a product specialist\u003c\/a\u003e directly from our sales engineering team.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e \u003ch3\u003eAre the blue caps sterile?\u003c\/h3\u003e \u003cp\u003eYes. Sterile — packed 1000\/Bag.\u003c\/p\u003e \u003ch3\u003eAre the blue caps  identical to the natural caps (222-3010-02N) except for color?\u003c\/h3\u003e \u003cp\u003eYes. The Blue and Green caps are the same HDPE material, same thread specification, and same price as the Natural cap (222-3010-02N). The color is the only difference — all three are compatible with the same Caplugs Evergreen transport vials and 15 mL centrifuge tubes.\u003c\/p\u003e \u003ch3\u003eWhat is the complete color set for these HDPE screw caps?\u003c\/h3\u003e \u003cp\u003eNatural (222-3010-02N), Blue , Green (222-3010-G2N) — all 1000\/Bag, all sterile HDPE, all $61.11 listed price. Additional colors may be available — contact us for current availability.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Caplugs® Evergreen 222-3010-B2N | Transport Vial \/ 15 mL Centrifuge Tube Screw Caps, Sterile — HDPE, Blue, 1000\/Bag\", \"sku\": \"2223010B2NE1\", \"mpn\": \"222-3010-B2N\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Caplugs® Evergreen\"}, \"manufacturer\": {\"@type\": \"Organization\", \"name\": \"Caplugs® Evergreen\", \"address\": \"USA\"}, \"material\": \"High-Density Polyethylene (HDPE)\", \"color\": \"Blue\", \"image\": \"https:\/\/prod-cp-cdn-images.azureedge.net\/catalog\/92300\/CB133AD1-CB0C-4B1A-9B7F-8FD51EDA3E77\/300-3010-B2N.png\", \"description\": \"Caplugs® Evergreen 222-3010-B2N: Transport Vial\/15 mL Centrifuge Tube Screw Caps, Sterile, HDPE, Blue, 1000\/Bag. MADE IN USA, authorized dealer.\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Product\", \"value\": \"Sterile screw caps\"}, {\"@type\": \"PropertyValue\", \"name\": \"Material\", \"value\": \"High-Density Polyethylene (HDPE)\"}, {\"@type\": \"PropertyValue\", \"name\": \"Color\", \"value\": \"Blue\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pack\", \"value\": \"1000\/Bag\"}, {\"@type\": \"PropertyValue\", \"name\": \"Sterility\", \"value\": \"Sterile\"}, {\"@type\": \"PropertyValue\", \"name\": \"Origin\", \"value\": \"USA\"}], \"offers\": {\"@type\": \"Offer\", \"priceCurrency\": \"USD\", \"price\": \"76.39\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/labsupplies.com\/products\/222-3010-b2n-screw-cap-only\"}}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 222-3010-B2N blue caps sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Sterile — packed 1000\/Bag.\"}}, {\"@type\": \"Question\", \"name\": \"Are the blue caps (222-3010-B2N) identical to the natural caps (222-3010-02N) except for color?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Blue and Green caps are the same HDPE material, same thread specification, and same price as the Natural cap (222-3010-02N). The color is the only difference — all three are compatible with the same Caplugs Evergreen transport vials and 15 mL centrifuge tubes.\"}}, {\"@type\": \"Question\", \"name\": \"What is the complete color set for these HDPE screw caps?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Natural (222-3010-02N), Blue (222-3010-B2N), Green (222-3010-G2N) — all 1000\/Bag, all sterile HDPE, all $61.11 listed price. Additional colors may be available — contact us for current availability.\"}}]}\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48567661134056,"sku":"2223010B2NE1","price":76.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/300-3010-B2N_82c7faaf-15c2-482f-9519-e89bd0790cf7.png?v=1779053220","url":"https:\/\/labsupplies.com\/products\/222-3010-b2n-screw-cap-only","provider":"LabSupplies.com","version":"1.0","type":"link"}