{"product_id":"caplugs-300-3010-l2n-hdpe-screw-cap-15ml-centrifuge-transport-vial-lavender","title":"15 mL Centrifuge Tubes, Screw Caps, HDPE, Lavender — 300-3010-L2N | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e15 mL Centrifuge Tube \u0026amp; Transport Vial Screw Caps — HDPE, Lavender, 1000\/Bag (300-3010-L2N)\u003c\/h2\u003e\n\u003cp\u003eThese lavender High-Density Polyethylene (HDPE) screw caps from Caplugs® Evergreen are designed to fit 15 mL centrifuge tubes and 7 mL transport vials, providing a threaded IATA P650-compliant leak-free closure for biological specimen transport and storage. Supplied non-sterile in 1000\/Bag bulk packaging, part number 300-3010-L2N is validated for use across the full temperature range from -80°C cryogenic archiving through autoclave sterilization at 121°C, making it equally suited to biorepository programs, clinical specimen routing, and routine laboratory centrifugation. The lavender color follows the CLSI H3 convention for EDTA anticoagulant specimens, enabling instant visual differentiation of CBC, HbA1c, and molecular panel batches without relabeling.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e300-3010-L2N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Type\u003c\/td\u003e\n\u003ctd\u003eScrew cap — threaded engagement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-Density Polyethylene (HDPE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eLavender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Compatibility\u003c\/td\u003e\n\u003ctd\u003e15 mL centrifuge tubes; 240-3007 \/ 240-3010 7 mL transport vials (Caplugs® Evergreen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIATA P650 Compliance\u003c\/td\u003e\n\u003ctd\u003eYes — leak-free primary container seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCryogenic Storage\u003c\/td\u003e\n\u003ctd\u003eCompatible at -20°C and -80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible at 121°C \/ 15 psi\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\u003e1000\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalates\u003c\/td\u003e\n\u003ctd\u003eBPA-free; no phthalate plasticizers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA (California)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 mL centrifuge tube capping:\u003c\/strong\u003e Replacement or color-coded caps for Caplugs® Evergreen 15 mL centrifuge tubes; HDPE threads engage the standard centrifuge tube neck securely through spin cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransport vial sealing:\u003c\/strong\u003e Screw-thread closure on the 240-3007 and 240-3010 7 mL transport vial family provides an IATA P650 leak-free primary container seal for biological specimen shipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-coded specimen routing:\u003c\/strong\u003e Lavender aligns with the CLSI H3 convention for EDTA anticoagulant specimens (CBC, HbA1c, molecular panels), enabling reliable visual batch differentiation across multi-specimen workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiobank and biorepository archiving:\u003c\/strong\u003e HDPE maintains thread engagement and cap integrity through repeated freeze-thaw cycling at -80°C, meeting the demands of long-term frozen aliquot programs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapped centrifugation:\u003c\/strong\u003e The threaded engagement retains the cap through centrifuge forces during serum or plasma separation protocols.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutoclave sterilization:\u003c\/strong\u003e Caps withstand 121°C autoclave cycles, allowing sterilization of assembled tube-and-cap assemblies prior to specimen collection or media filling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThese caps are engineered for Caplugs® Evergreen 15 mL centrifuge tubes and the 240-3007 \/ 240-3010 family of 7 mL transport vials. The threaded geometry provides the torque engagement and cap retention required for both centrifugation and IATA P650-compliant specimen transport. Because thread dimensions can vary across tube manufacturers, LabSupplies.com recommends requesting a free sample to validate cap-to-tube fit before committing to a bulk order, particularly when replacing caps on non-Caplugs® Evergreen tubes.\u003c\/p\u003e\n\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eReagent \/ Condition\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers, serum, plasma\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-chain alcohols (brief contact)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids (\u0026lt;10%)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDMSO (≤10%)\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage at -20°C \/ -80°C\u003c\/td\u003e\n\u003ctd\u003eExcellent — maintains thread engagement through freeze-thaw cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave (121°C \/ 15 psi)\u003c\/td\u003e\n\u003ctd\u003eCompatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone \/ chlorinated solvents\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eMade in USA (California), Caplugs® Evergreen screw caps are manufactured from BPA-free, phthalate-free HDPE resin under ISO quality management standards. The high crystallinity of HDPE versus lower-density polyethylenes delivers the thread-wall rigidity required for consistent torque engagement across centrifugation, cryogenic storage, and autoclave sterilization in a single cap. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory with tiered volume pricing available for clinical laboratories, hospital systems, biobanks, and research institutions purchasing on institutional accounts or grant funding.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these caps fit centrifuge tubes from other manufacturers?\u003c\/strong\u003e\u003cbr\u003eThese caps are validated for Caplugs® Evergreen 15 mL centrifuge tubes and 240-3007 \/ 240-3010 transport vials. Thread dimensions vary across manufacturers, so we strongly recommend requesting a free sample to confirm fit before placing a bulk order on third-party tubes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these caps autoclavable?\u003c\/strong\u003e\u003cbr\u003eYes. The HDPE material is compatible with standard autoclave cycles at 121°C \/ 15 psi, making these caps suitable for sterilization of assembled tube-and-cap assemblies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy lavender? Is this a standard color code in the lab?\u003c\/strong\u003e\u003cbr\u003eLavender follows the CLSI H3 convention for EDTA anticoagulant specimen tubes. Using lavender caps on 15 mL centrifuge tubes and transport vials lets clinical and research staff immediately identify EDTA-processed batches — such as CBC, HbA1c, or molecular panel specimens — without additional labeling steps.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan these caps be used for long-term frozen storage at -80°C?\u003c\/strong\u003e\u003cbr\u003eYes. HDPE maintains its structural integrity and threaded engagement through repeated freeze-thaw cycling at -80°C, which is why this cap is specifically suited to biorepository and biobank archiving programs that cycle specimens in and out of ultra-low temperature storage.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"15 mL Centrifuge Tube \u0026 Transport Vial Screw Caps — HDPE, Lavender, 1000\/Bag\",\"sku\":\"300-3010-L2N\",\"mpn\":\"300-3010-L2N\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"High-Density Polyethylene (HDPE)\",\"color\":\"Lavender\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"67.50\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will these caps fit centrifuge tubes from other manufacturers?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These caps are validated for Caplugs® Evergreen 15 mL centrifuge tubes and 240-3007 \/ 240-3010 transport vials. 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