{"product_id":"220-3530-080-freestanding-centrifuge-tube","title":"15–30 mL Centrifuge Tubes, Screw Caps, PPC, Natural — 220-3530-080 | 250\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eQuick Reference\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e220-3530-080\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCapacity\u003c\/th\u003e \u003ctd\u003e30 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003ePolypropylene Copolymer (PPC)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eGeometry\u003c\/th\u003e \u003ctd\u003eFlat freestanding base, 30 mL conical or cylindrical body\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCap\u003c\/th\u003e \u003ctd\u003eCompatible screw cap (sold separately)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e250\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eNon-Sterile\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$163.59\/Bag ($0.6544\/tube)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen \u003cstrong\u003e220-3530-080\u003c\/strong\u003e is a \u003cstrong\u003e30 mL Freestanding Centrifuge Tube\u003c\/strong\u003e in \u003cstrong\u003ePPC\u003c\/strong\u003e (Natural), packaged 250\/Bag. The 30 mL freestanding tube is the standard large-volume centrifuge tube for cell culture harvest at the 15–30 mL scale, bulk reagent preparation, density gradient centrifugation, and SPE fraction collection above the 15 mL conical capacity. The freestanding base eliminates rack dependency during bench processing of large batches.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePolypropylene Copolymer (PPC)\u003c\/strong\u003e: PPC adds improved optical clarity over homopolymer PP for direct visual inspection through the tube wall and better cold-temperature flexibility — suited to visual monitoring, cold-room centrifugation, and workflows requiring the clarity advantage alongside broad organic solvent compatibility. BPA-free, phthalate-free, FDA-compliant, \u003c\/p\u003e \u003cp\u003eProcurement economics: \u003cstrong\u003e$163.59\/Bag\u003c\/strong\u003e, \u003cstrong\u003e$0.6544\/tube\u003c\/strong\u003e at 250\/Bag. Volume pricing at 10+ bags. 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\u003eCapacity\u003c\/th\u003e \u003ctd\u003e30 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eGeometry\u003c\/th\u003e \u003ctd\u003eFreestanding base, 30 mL centrifuge tube\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003ePolypropylene Copolymer (PPC)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCap\u003c\/th\u003e \u003ctd\u003eCompatible screw cap (sold separately)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eNon-Sterile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e250\/Bag (30 mL freestanding centrifuge tube, PPC Natural, 250\/Bag)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003ctd\u003e30 mL cell harvest, reagent prep, SPE; PPC optical clarity for visual monitoring\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$163.59\/Bag ($0.6544\/tube)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003e30 mL PPC Freestanding Centrifuge Tube Applications\u003c\/h2\u003e \u003cp\u003eThe is compatible with the following large-volume centrifuge and lab prep workflows.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eApplication \/ Platform\u003c\/th\u003e \u003cth\u003eConfiguration\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eBench centrifuge\u003c\/th\u003e \u003ctd\u003eCentrifuge rotor with 30 mL conical adapter, up to 3000×g\u003c\/td\u003e \u003ctd\u003eFreestanding base; verify rotor accepts this format\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCell culture harvest\u003c\/th\u003e \u003ctd\u003eSuspension culture, 30 mL aliquots\u003c\/td\u003e \u003ctd\u003eLarge-format harvest; freestanding for rack-free bench handling\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBulk reagent prep\u003c\/th\u003e \u003ctd\u003eBench preparation at 30 mL scale\u003c\/td\u003e \u003ctd\u003eFreestanding — no rack needed during prep\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSPE eluate collection\u003c\/th\u003e \u003ctd\u003eUnder SPE manifold, 30 mL collection\u003c\/td\u003e \u003ctd\u003ePPC: PPC clarity + full ACN\/MeOH; 80°C rating\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eWater bath incubation\u003c\/th\u003e \u003ctd\u003eUp to ~80°C\u003c\/td\u003e \u003ctd\u003ePPC: ~80°C thermal rating\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eDensity gradient centrifugation\u003c\/th\u003e \u003ctd\u003eSwing-bucket or fixed-angle rotor\u003c\/td\u003e \u003ctd\u003e30 mL capacity for Ficoll\/Percoll gradients\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCold storage\u003c\/th\u003e \u003ctd\u003e4°C \/ —20°C, freestanding\u003c\/td\u003e \u003ctd\u003ePPC: improved cold flexibility\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eChemical Resistance — Polypropylene Copolymer (PPC)\u003c\/h2\u003e \u003cp\u003eCompatibility reference for PPC at typical laboratory concentrations.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eReagent \/ Sample Type\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\u003eInert across pH 2–12.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDilute acids \/ bases (\u0026lt;10%)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eBroad pH resistance.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMethanol \/ acetonitrile (\u0026lt;100%)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eFull organic solvent compatibility.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEthanol \/ IPA (\u0026lt;100%)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eCompatible for extraction and fixation.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEthyl acetate\u003c\/td\u003e \u003ctd\u003eLimited\u003c\/td\u003e \u003ctd\u003eShort-term compatible; avoid prolonged contact.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDichloromethane \/ chloroform\u003c\/td\u003e \u003ctd\u003eNot Compatible\u003c\/td\u003e \u003ctd\u003eCauses cracking; do not use.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCell culture media\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eStandard biological matrix; low protein-binding.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCold storage (—80°C)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003ePPC: improved flexibility vs hPP at low temperatures.\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eClinical \u0026amp; Research Laboratory Applications\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen 30 mL PPC freestanding centrifuge tubes serve cell biology, microbiology, bioanalytical, and research laboratories running large-volume centrifuge workflows above the 15 mL conical tube capacity. The 30 mL format is standard for suspension culture harvest at the 20–30 mL scale, bulk reagent and buffer preparation, density gradient centrifugation (Ficoll, Percoll), and SPE eluate collection at the 15–30 mL scale. The freestanding base eliminates rack dependency throughout the sample prep workflow — the tube stands upright during bench pipetting, incubation, and sorting without requiring a rack at each step.\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 tubes sterile?\u003c\/h3\u003e \u003cp\u003eNo. The ships Non-Sterile. For sterility-critical applications, use aseptic technique or ask about gamma-sterilized options.\u003c\/p\u003e \u003ch3\u003eWhat is the maximum centrifuge speed for the 30 mL freestanding tube?\u003c\/h3\u003e \u003cp\u003eFreestanding centrifuge tubes in the 30 mL format are suitable for bench centrifuges with appropriate rotor adapters up to approximately 3000×g for standard cell pelleting and density gradient protocols. For speeds above 3000×g, verify that the specific rotor and adapter are rated for the tube format. Do not use freestanding tubes in rotors designed only for standard-base conical tubes without confirming adapter compatibility.\u003c\/p\u003e \u003ch3\u003eWhy choose PPC  over PP (220-3530-030) for the 30 mL freestanding tube?\u003c\/h3\u003e \u003cp\u003eBoth provide full ACN\/MeOH organic solvent compatibility and ~80°C thermal rating. PPC adds improved optical clarity for visual sample and gradient interface monitoring through the tube wall, and better cold-temperature flexibility for 4°C centrifuge protocols. Use PP when price is the primary criterion and optical clarity is not required; use PPC when visual monitoring or cold-room centrifugation are workflow requirements.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Caplugs® Evergreen 220-3530-080 | 30 mL Freestanding Centrifuge Tubes — PPC, Natural, 250\/Bag\", \"sku\": \"2203530080E1\", \"mpn\": \"220-3530-080\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Caplugs® Evergreen\"}, \"manufacturer\": {\"@type\": \"Organization\", \"name\": \"Caplugs® Evergreen\", \"address\": \"USA\"}, \"material\": \"Polypropylene Copolymer (PPC)\", \"color\": \"Natural\", \"image\": \"https:\/\/prod-cp-cdn-images.azureedge.net\/catalog\/92300\/CB133AD1-CB0C-4B1A-9B7F-8FD51EDA3E77\/220-3530-080_01.jpg\", \"description\": \"Caplugs® Evergreen 220-3530-080: 30 mL Freestanding Centrifuge Tubes, PPC, Natural, 250\/Bag. MADE IN USA, authorized dealer.\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Capacity\", \"value\": \"30 mL\"}, {\"@type\": \"PropertyValue\", \"name\": \"Material\", \"value\": \"Polypropylene Copolymer (PPC)\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pack Size\", \"value\": \"250\/Bag\"}, {\"@type\": \"PropertyValue\", \"name\": \"Sterility\", \"value\": \"Non-Sterile\"}, {\"@type\": \"PropertyValue\", \"name\": \"Origin\", \"value\": \"USA\"}], \"offers\": {\"@type\": \"Offer\", \"priceCurrency\": \"USD\", \"price\": \"163.59\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/labsupplies.com\/products\/220-3530-080-freestanding-centrifuge-tube\"}}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 220-3530-080 tubes sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The 220-3530-080 ships Non-Sterile. For sterility-critical applications, use aseptic technique or ask about gamma-sterilized options.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum centrifuge speed for the 30 mL freestanding tube?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Freestanding centrifuge tubes in the 30 mL format are suitable for bench centrifuges with appropriate rotor adapters up to approximately 3000×g for standard cell pelleting and density gradient protocols. For speeds above 3000×g, verify that the specific rotor and adapter are rated for the tube format. Do not use freestanding tubes in rotors designed only for standard-base conical tubes without confirming adapter compatibility.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose PPC (220-3530-080) over PP (220-3530-030) for the 30 mL freestanding tube?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both provide full ACN\/MeOH organic solvent compatibility and ~80°C thermal rating. PPC adds improved optical clarity for visual sample and gradient interface monitoring through the tube wall, and better cold-temperature flexibility for 4°C centrifuge protocols. Use PP when price is the primary criterion and optical clarity is not required; use PPC when visual monitoring or cold-room centrifugation are workflow requirements.\"}}]}\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48565335064808,"sku":"2203530080E1","price":163.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/220-3530-080_01_597088d7-2300-4e56-b765-131964aa1a5a.jpg?v=1778984251","url":"https:\/\/labsupplies.com\/products\/220-3530-080-freestanding-centrifuge-tube","provider":"LabSupplies.com","version":"1.0","type":"link"}