{"product_id":"conical-centrifuge-tubes-30ml-ppc-2203928080e1","title":"30 mL Centrifuge Tubes, Conical Bottom, PPC, Natural — 220-3928-080 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e30 mL Conical Bottom Centrifuge Tubes — Threaded Cap, PPC, Natural (220-3928-080)\u003c\/h2\u003e\n\u003cp\u003eThese 30 mL conical bottom centrifuge tubes are molded from virgin-grade Polypropylene Copolymer (PPC) and feature a threaded, leak-resistant cap that outperforms snap-cap formats under centrifugal force and during sample transport. Supplied non-sterile in bulk (1000\/Bag), part number 220-3928-080 is well suited for clinical specimen processing, cell culture harvest, and preparative centrifugation workflows where consistent pellet recovery and secure closure are essential.\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\u003e220-3928-080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e30 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBottom Style\u003c\/td\u003e\n\u003ctd\u003eConical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Style\u003c\/td\u003e\n\u003ctd\u003eThreaded — leak-resistant seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene Copolymer (PPC)\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\u003eBPA \/ Phthalate Free\u003c\/td\u003e\n\u003ctd\u003eYes\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\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\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\u003eCell culture harvest: conical geometry concentrates cell pellets at the tube tip for complete recovery with minimal dead volume\u003c\/li\u003e\n\u003cli\u003eSerum and plasma separation: secure threaded closure maintains sample integrity before and after centrifugation\u003c\/li\u003e\n\u003cli\u003eProtein precipitation and density gradient centrifugation: reliable threaded seal prevents leakage at speed\u003c\/li\u003e\n\u003cli\u003eClinical specimen processing and storage: leak-resistant closure controls evaporation and contamination risk in CAP\/CLIA-regulated workflows\u003c\/li\u003e\n\u003cli\u003eReagent preparation and general sample storage requiring a robust, resealable 30 mL format\u003c\/li\u003e\n\u003c\/ul\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 \/ saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethanol\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsopropanol\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetonitrile\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (toluene, xylene)\u003c\/td\u003e\n\u003ctd\u003eLimited — verify before use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated solvents (chloroform, DCM)\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, these Caplugs® Evergreen centrifuge tubes are manufactured under ISO-certified quality management from FDA-registered, virgin-grade PPC resin that is BPA-free and phthalate-free. Lot-to-lot dimensional consistency ensures reliable fit in standard centrifuge rotor positions and reproducible threaded cap torque performance across every 1000-tube bag. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory with tiered pricing available for high-volume institutional and grant-funded purchasers.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these centrifuge tubes sterile?\u003c\/strong\u003e\u003cbr\u003eNo — they are supplied non-sterile in 1000\/Bag bulk packaging. For applications requiring sterility, such as aseptic cell culture, consider a gamma-irradiated or certified sterile alternative.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill the threaded cap hold during centrifugation?\u003c\/strong\u003e\u003cbr\u003eYes. The threaded closure is designed to deliver a leak-resistant seal under centrifugal force, making it more reliable than snap-cap formats for sealed centrifugation and sample transport. Always confirm your specific centrifuge rotor's maximum RCF rating against your protocol requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is Polypropylene Copolymer (PPC), and how does it differ from standard PP?\u003c\/strong\u003e\u003cbr\u003ePPC is a copolymer formulation of polypropylene that retains PP's excellent chemical resistance to aqueous buffers, dilute acids and bases, and common alcohols, while offering improved impact toughness and clarity compared to standard homopolymer PP. It is not suitable for use with chlorinated or aromatic solvents.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these tubes suitable for regulated clinical laboratory workflows?\u003c\/strong\u003e\u003cbr\u003eThe tubes are manufactured under ISO-certified quality management with lot-level traceability, which supports documentation requirements in CAP\/CLIA and ISO 15189 environments. End users are responsible for validating the tubes within their specific laboratory quality system.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"30 mL Conical Bottom Centrifuge Tubes, Threaded Cap, PPC, Natural — 1000\/Bag\",\"sku\":\"2203928080E1\",\"mpn\":\"220-3928-080\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene Copolymer (PPC)\",\"color\":\"Natural\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"157.04\",\"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\":\"Are these centrifuge tubes sterile?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No — they are supplied non-sterile in 1000\/Bag bulk packaging. For applications requiring sterility, such as aseptic cell culture, consider a gamma-irradiated or certified sterile alternative.\"}},{\"@type\":\"Question\",\"name\":\"Will the threaded cap hold during centrifugation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The threaded closure is designed to deliver a leak-resistant seal under centrifugal force, making it more reliable than snap-cap formats for sealed centrifugation and sample transport. Always confirm your specific centrifuge rotor's maximum RCF rating against your protocol requirements.\"}},{\"@type\":\"Question\",\"name\":\"What is Polypropylene Copolymer (PPC), and how does it differ from standard PP?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"PPC is a copolymer formulation of polypropylene that retains PP's excellent chemical resistance to aqueous buffers, dilute acids and bases, and common alcohols, while offering improved impact toughness and clarity compared to standard homopolymer PP. It is not suitable for use with chlorinated or aromatic solvents.\"}},{\"@type\":\"Question\",\"name\":\"Are these tubes suitable for regulated clinical laboratory workflows?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The tubes are manufactured under ISO-certified quality management with lot-level traceability, which supports documentation requirements in CAP\/CLIA and ISO 15189 environments. End users are responsible for validating the tubes within their specific laboratory quality system.\"}}]}\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48555882545384,"sku":"2203928080E1","price":157.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/220-3928-080.png?v=1778721559","url":"https:\/\/labsupplies.com\/products\/conical-centrifuge-tubes-30ml-ppc-2203928080e1","provider":"LabSupplies.com","version":"1.0","type":"link"}