{"product_id":"freestanding-centrifuge-tubes-30ml-red-caps-pp-spork-2403534r30e1","title":"30 mL Centrifuge Tubes, Freestanding, PP, Red — 240-3534-R30 | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003e30 mL Freestanding Polypropylene Centrifuge Tubes with Spork Red Caps — 240-3534-R30\u003c\/h2\u003e\n\u003cp\u003eThese 30 mL freestanding polypropylene centrifuge tubes feature an integrated spork cap in red and are supplied 1000\/Bag unassembled for compact storage and efficient distribution. The flat-bottom freestanding base eliminates the need for a rack during bench-top processing, and molded-in graduations every 5 mL provide quick, reliable volume reads without additional measuring steps. Rated to 10,000 × g, these tubes are well suited to clinical, diagnostic, and research workflows that demand a large-format, chemically resistant centrifuge tube.\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\u003e240-3534-R30\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\u003eMaximum RCF\u003c\/td\u003e\n\u003ctd\u003e10,000 × g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraduations\u003c\/td\u003e\n\u003ctd\u003eEvery 5 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Color\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpork Cap\u003c\/td\u003e\n\u003ctd\u003eYes — integrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Body Color\u003c\/td\u003e\n\u003ctd\u003eNatural (clear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Style\u003c\/td\u003e\n\u003ctd\u003eFreestanding Flat Bottom\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\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eUnassembled\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 \/ Phthalate Free\u003c\/td\u003e\n\u003ctd\u003eYes\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\u003eFecal and stool specimen collection — the integrated spork cap supports direct collection without a separate tool\u003c\/li\u003e\n\u003cli\u003eClinical chemistry and molecular diagnostics requiring large-volume sample processing\u003c\/li\u003e\n\u003cli\u003eNucleic acid (DNA\/RNA) extraction workflows where polypropylene chemical resistance is essential\u003c\/li\u003e\n\u003cli\u003eCell culture harvest, protein purification, and pelleting at up to 10,000 × g\u003c\/li\u003e\n\u003cli\u003eMicrobiology and environmental laboratory sample preparation\u003c\/li\u003e\n\u003cli\u003eColor-coded tube management systems — red caps enable visual lot and sample-type differentiation at a glance\u003c\/li\u003e\n\u003cli\u003eCAP-, CLIA-, and ISO 15189-compliant laboratories requiring lot-numbered, traceable consumables\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 and saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids and bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthanol and isopropanol\u003c\/td\u003e\n\u003ctd\u003eGood — short-term contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone and ketones\u003c\/td\u003e\n\u003ctd\u003eLimited — short-term contact only\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\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (toluene, xylene)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave sterilization\u003c\/td\u003e\n\u003ctd\u003ePolypropylene is autoclavable; verify tube closure integrity before autoclaving\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 from BPA-free, phthalate-free polypropylene and are lot-numbered to support traceability requirements in CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, with tiered volume pricing available for institutional purchasing teams, hospital systems, and grant-funded research programs.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the spork cap, and which workflows use it?\u003c\/strong\u003e\u003cbr\u003eThe spork is a small integrated collection tool molded into the red cap of each tube, designed specifically for fecal and stool specimen collection. It allows direct sampling without a separate collection implement, streamlining workflow in clinical microbiology and parasitology settings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo these tubes require a rack for bench-top use?\u003c\/strong\u003e\u003cbr\u003eNo. The flat-bottom freestanding base allows the tubes to stand upright on any flat bench surface without a separate rack, which simplifies staging, aliquoting, and short-term storage during active workflows.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these centrifuge tubes sterile?\u003c\/strong\u003e\u003cbr\u003eThese tubes are supplied non-sterile. For applications requiring sterility — such as cell culture or certain molecular assays — laboratories should apply their standard decontamination or sterile-technique protocols as appropriate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does \"unassembled\" mean for the 1000\/Bag format?\u003c\/strong\u003e\u003cbr\u003eUnassembled means the caps and tubes are packaged separately within the bag rather than pre-attached. This reduces the bag footprint for storage and shipping, and many labs attach caps at point of use as part of their labeling and preparation workflow.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"30 mL Freestanding Centrifuge Tubes, PP, Red Spork Cap, Non-Sterile — 1000\/Bag\",\"sku\":\"2403534R30E1\",\"mpn\":\"240-3534-R30\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene (PP)\",\"color\":\"Red Cap \/ Natural Tube Body\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"260.27\",\"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\":\"What is the spork cap, and which workflows use it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The spork is a small integrated collection tool molded into the red cap of each tube, designed specifically for fecal and stool specimen collection. 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