{"product_id":"220-3519-080-freestanding-vial","title":"15–20 mL Tube Racks, Screw Caps, PPC, Natural — 220-3519-080 | 500\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eQuick Reference\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e220-3519-080\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCapacity\u003c\/th\u003e \u003ctd\u003e20 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 or molded freestanding base, cylindrical body\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCap\u003c\/th\u003e \u003ctd\u003eCompatible screw cap or stopper (sold separately)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e500\/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$188.89\/Bag ($0.3778\/vial)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen \u003cstrong\u003e220-3519-080\u003c\/strong\u003e is a \u003cstrong\u003e20 mL Freestanding Vial\u003c\/strong\u003e in \u003cstrong\u003ePPC\u003c\/strong\u003e (Natural), packaged 500\/Bag. The freestanding base allows the vial to stand upright on a bench surface without a rack — eliminating rack dependency for large-volume sample handling, reagent storage, and batch processing workflows. The 20 mL format bridges the 15 mL conical tube and the 30 mL freestanding tube, suited to reagent preparation, calibrator storage, and sample pooling at the 15–20 mL scale. PPC's superior optical clarity versus homopolymer PP supports direct visual inspection of vial contents and turbidimetric monitoring.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePolypropylene Copolymer (PPC)\u003c\/strong\u003e: superior clarity vs homopolymer PP, improved cold-temperature flexibility, full ACN\/MeOH compatibility. BPA-free, phthalate-free, FDA-compliant, \u003c\/p\u003e \u003cp\u003eProcurement economics: \u003cstrong\u003e$188.89\/Bag\u003c\/strong\u003e, \u003cstrong\u003e$0.3778\/vial\u003c\/strong\u003e at 500\/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\u003e20 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eGeometry\u003c\/th\u003e \u003ctd\u003eFreestanding base, cylindrical vial body\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 or stopper (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\u003e500\/Bag (20 mL freestanding vial, PPC Natural, 500\/Bag)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003ctd\u003e20 mL reagent prep, calibrator storage, sample pooling; freestanding for rack-free bench use\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$188.89\/Bag ($0.3778\/vial)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003e20 mL PPC Freestanding Vial Applications\u003c\/h2\u003e \u003cp\u003eThe is compatible with the following sample handling 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 reagent prep\u003c\/th\u003e \u003ctd\u003eBench surface, rack-free use\u003c\/td\u003e \u003ctd\u003eFreestanding base — no rack required during prep\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCalibrator storage\u003c\/th\u003e \u003ctd\u003eRefrigerator \/ freezer, upright vial storage\u003c\/td\u003e \u003ctd\u003ePPC: clarity for visual level check; freestanding for rack-free storage\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSample pooling\u003c\/th\u003e \u003ctd\u003eBench collection vessel, 20 mL capacity\u003c\/td\u003e \u003ctd\u003e20 mL bridges 15 mL conical and 30 mL centrifuge tube capacity\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\u003eTurbidimetric monitoring\u003c\/th\u003e \u003ctd\u003eVisual inspection through tube wall\u003c\/td\u003e \u003ctd\u003ePPC: improved clarity vs hPP for visual monitoring\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBatch processing\u003c\/th\u003e \u003ctd\u003eHigh-throughput rack-free bench setup\u003c\/td\u003e \u003ctd\u003eFreestanding: upright without rack throughout workflow\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCold storage\u003c\/th\u003e \u003ctd\u003e—20°C \/ freezer\u003c\/td\u003e \u003ctd\u003ePPC: improved cold-temperature 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 20 mL PPC freestanding vials serve clinical chemistry, reference laboratory, and research workflows at the 15–20 mL scale where rack-free bench use is a workflow advantage. The freestanding base allows vials to stand upright on any bench surface without a tube rack — eliminating the rack-positioning step in high-throughput reagent preparation, calibrator dispensing, and batch sample pooling. Clinical chemistry labs use freestanding vials for calibrator and reagent storage between analytical runs; the vial stands upright in the refrigerator without a dedicated rack. PPC's improved optical clarity over homopolymer PP supports turbidimetric monitoring and visual content inspection through the vial wall.\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 vials 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 makes a 'freestanding vial' different from a standard conical tube?\u003c\/h3\u003e \u003cp\u003eFreestanding vials have a molded flat or stabilized base that allows them to stand upright on a flat bench surface without a tube rack. Standard conical tubes have a pointed or rounded conical base that requires a rack. Use freestanding vials when rack-free bench use is a workflow advantage — reagent prep, calibrator storage, and batch pipetting where positioning a rack at each step adds handling time.\u003c\/p\u003e \u003ch3\u003eWhat cap is compatible with the 20 mL PPC freestanding vial?\u003c\/h3\u003e \u003cp\u003eThe ships without a cap. Use a compatible screw cap sized for the vial neck diameter. Verify cap thread compatibility before standardizing — contact us for cap recommendation if needed.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Caplugs® Evergreen 220-3519-080 | 20 mL Freestanding Vials — PPC, Natural, 500\/Bag\", \"sku\": \"2203519080E1\", \"mpn\": \"220-3519-080\", \"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\/9093F9E9-0629-4E5F-B21B-39C8A1BB4B87\/220-3520-080_01.jpg\", \"description\": \"Caplugs® Evergreen 220-3519-080: 20 mL Freestanding Vials, PPC, Natural, 500\/Bag. MADE IN USA, authorized dealer.\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Capacity\", \"value\": \"20 mL\"}, {\"@type\": \"PropertyValue\", \"name\": \"Material\", \"value\": \"Polypropylene Copolymer (PPC)\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pack Size\", \"value\": \"500\/Bag\"}, {\"@type\": \"PropertyValue\", \"name\": \"Sterility\", \"value\": \"Non-Sterile\"}, {\"@type\": \"PropertyValue\", \"name\": \"Origin\", \"value\": \"USA\"}], \"offers\": {\"@type\": \"Offer\", \"priceCurrency\": \"USD\", \"price\": \"188.89\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/labsupplies.com\/products\/220-3519-080-freestanding-vial\"}}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 220-3519-080 vials sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The 220-3519-080 ships Non-Sterile. 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Verify cap thread compatibility before standardizing — contact us for cap recommendation if needed.\"}}]}\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48565334966504,"sku":"2203519080E1","price":188.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/220-3520-080_01_dc66d2ec-6233-4625-9714-15107c0da7b6.jpg?v=1778984247","url":"https:\/\/labsupplies.com\/products\/220-3519-080-freestanding-vial","provider":"LabSupplies.com","version":"1.0","type":"link"}