{"product_id":"127-1988-030-threaded-false-bottom-tube","title":"5.0 mL Threaded False-Bottom Sample Tubes, Polypropylene (PP), Natural, 500\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 5.0 mL Threaded False-Bottom Sample Tubes, Polypropylene (PP), Natural, Non-Sterile, 500\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 5.0 mL Threaded False-Bottom Sample Tubes\u003c\/strong\u003e are molded from natural polypropylene (PP) for routine sample collection, aliquoting, and short-term storage on automated analyzers and benchtop workflows. Their threaded neck accepts screw caps for secure transport, while the false-bottom geometry improves probe access and helps minimize dead volume during aspiration.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eThreaded False-Bottom Sample Tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e5.0 mL\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\u003eClosure\/Cap\u003c\/td\u003e\n\u003ctd\u003eExternal thread for screw cap (cap sold separately)\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\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e500\/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\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample collection and aliquoting on automated and benchtop analyzers\u003c\/li\u003e\n\u003cli\u003eShort-term storage of aqueous biological and reagent samples\u003c\/li\u003e\n\u003cli\u003eSpecimen handling in clinical and reference laboratory workflows\u003c\/li\u003e\n\u003cli\u003eLow-speed centrifugation of samples within PP-rated limits\u003c\/li\u003e\n\u003cli\u003eReagent dispensing and dilution preparation at the bench\u003c\/li\u003e\n\u003cli\u003eSecondary containment and transport when fitted with a screw cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eEach bag ships from US inventory through labsupplies.com, an authorized Caplugs® Evergreen dealer. These tubes are Made in USA, and bags carry lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available for high-volume procurement — contact our team for a quote.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eAre these tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These tubes are supplied non-sterile. For applications requiring sterility, validate an in-house sterilization method appropriate for polypropylene before use.\u003c\/p\u003e\n\u003ch3\u003eWhat does \"false-bottom\" mean for these tubes?\u003c\/h3\u003e\n\u003cp\u003eThe false-bottom geometry positions a tapered internal floor above the molded base, improving probe and pipette access while reducing residual dead volume during sample aspiration.\u003c\/p\u003e\n\u003ch3\u003eDo these tubes include caps?\u003c\/h3\u003e\n\u003cp\u003eThe neck is externally threaded to accept a compatible screw cap, but caps are not included in this pack. Order caps separately to match your closure and transport requirements.\u003c\/p\u003e\n\u003ch3\u003eCan these tubes be centrifuged?\u003c\/h3\u003e\n\u003cp\u003eThey tolerate low-speed centrifugation within the mechanical limits of polypropylene. Confirm your g-force does not exceed the resin's rated capacity for your tube format before spinning.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Caplugs® Evergreen 5.0 mL Threaded False-Bottom Sample Tubes, Polypropylene (PP), Natural, Non-Sterile, 500\/Bag\",\n  \"sku\": \"127-1988-030\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"129.62\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"labsupplies.com\"\n    }\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These tubes are supplied non-sterile. For applications requiring sterility, validate an in-house sterilization method appropriate for polypropylene before use.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does \\\"false-bottom\\\" mean for these tubes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The false-bottom geometry positions a tapered internal floor above the molded base, improving probe and pipette access while reducing residual dead volume during sample aspiration.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do these tubes include caps?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The neck is externally threaded to accept a compatible screw cap, but caps are not included in this pack. Order caps separately to match your closure and transport requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these tubes be centrifuged?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"They tolerate low-speed centrifugation within the mechanical limits of polypropylene. Confirm your g-force does not exceed the resin's rated capacity for your tube format before spinning.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48554796056808,"sku":"1271988030E1","price":129.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/127-1988-030_01_7ccc588a-0781-47a4-9539-dd400537b2db.jpg?v=1778707833","url":"https:\/\/labsupplies.com\/products\/127-1988-030-threaded-false-bottom-tube","provider":"LabSupplies.com","version":"1.0","type":"link"}