{"product_id":"127-1988-n30-threaded-false-bottom-tube","title":"5.0 mL Threaded False-Bottom Sample Tubes, Polypropylene (PP), Amber, Non-Sterile, 500\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 5.0 mL Threaded False-Bottom Sample Tubes, Polypropylene (PP), Amber, Non-Sterile, 500\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 5.0 mL threaded false-bottom sample tubes\u003c\/strong\u003e deliver dependable amber polypropylene containment for light-sensitive analyte storage, aliquoting, and routine sample archiving. Their false-bottom geometry positions small-volume samples for easy pipette access, while the threaded format accepts secure screw closures for leak-resistant transport between bench, freezer, and analyzer staging.\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\u003eThreaded (screw-cap compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eAmber\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\u003eStorage of photosensitive reagents and analytes requiring amber light protection\u003c\/li\u003e\n\u003cli\u003eSample aliquoting where the false-bottom design aids low-dead-volume recovery\u003c\/li\u003e\n\u003cli\u003eRoutine specimen archiving in refrigerated or frozen conditions\u003c\/li\u003e\n\u003cli\u003eReagent dispensing and short-term buffer holding at the bench\u003c\/li\u003e\n\u003cli\u003eManual sample preparation prior to instrument loading\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose chemistry and life-science sample handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eThese tubes ship from US inventory through labsupplies.com, an authorized Caplugs® Evergreen dealer, and are proudly Made in USA. Each bag carries a lot number, supporting traceability requirements for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does the false-bottom design do?\u003c\/h3\u003e\n\u003cp\u003eThe false bottom narrows the interior at the base, concentrating small sample volumes so a pipette tip can reach and recover them with minimal dead volume — useful for limited or precious specimens.\u003c\/p\u003e\n\u003ch3\u003eWhy are these tubes amber instead of clear?\u003c\/h3\u003e\n\u003cp\u003eThe amber polypropylene reduces light transmission, helping protect photosensitive reagents and analytes from degradation during handling and storage.\u003c\/p\u003e\n\u003ch3\u003eAre these tubes sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These are non-sterile tubes intended for general sample storage and preparation. For applications requiring sterility, validate or sterilize per your laboratory's protocol.\u003c\/p\u003e\n\u003ch3\u003eHow are the tubes packaged and sold?\u003c\/h3\u003e\n\u003cp\u003eThey are sold by the bag of 500 tubes (500\/Bag). Each bag carries a lot number to support traceability in accredited laboratory workflows.\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), Amber, Non-Sterile, 500\/Bag\",\n  \"sku\": \"127-1988-N30\",\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\": \"What does the false-bottom design do?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The false bottom narrows the interior at the base, concentrating small sample volumes so a pipette tip can reach and recover them with minimal dead volume — useful for limited or precious specimens.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why are these tubes amber instead of clear?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The amber polypropylene reduces light transmission, helping protect photosensitive reagents and analytes from degradation during handling and storage.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these tubes sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These are non-sterile tubes intended for general sample storage and preparation. 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