{"product_id":"caplugs-300-3910-fn20-mst-flat-top-cryo-vial-caps-hdpe-amber","title":"Vial Caps, HDPE, Amber — 300-3910-FN20 | 200\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eFlat Top MST™ Cryogenic Vial Caps, HDPE, Amber — 300-3910-FN20 | 200\/Bag\u003c\/h2\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eQuick Reference — 300-3910-FN20\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSub-brand\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eMST™ (Caplugs® Evergreen)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCap Profile\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eFlat Top — distinct from CryoSure® dome-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eHigh-Density Polyethylene (HDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eAmber\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCryo Rating\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e✓ LN₂ vapor phase (-196°C) and immersion\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eLight Protection\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePartial UV\/visible attenuation — amber convention\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eColor Use\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eAmber MST™ caps are the second MST™-exclusive color alongsid\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003evs CryoSure®\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eMST™ flat top for MST™ vials only\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePack Size\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e200\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e$19.78 \/ Bag ($0.0989 \/ cap)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen MST™ is a amber HDPE flat-top cryogenic vial cap for MST™ cryogenic vials, rated for LN₂ vapor phase (-196°C), LN₂ immersion, and -80°C storage. Amber MST™ caps are the second MST™-exclusive color alongside Chocolate — not available in CryoSure®. Amber HDPE provides partial UV and visible light attenuation, reducing light transmission to the vial contents for specimens sensitive to light but where complete black-out is not required. Amber caps are a well-established convention in pharmaceutical and clinical chemistry for semi-protected storage, bridging the gap between clear caps (no protection) and black caps (complete blockage).\u003c\/p\u003e \u003cp\u003eAmber is the second MST™-exclusive color alongside Chocolate (300-3910-FM20). In the pharmaceutical and clinical chemistry convention, amber-colored containers reduce UV and visible light transmission — protecting photosensitive contents better than clear but less completely than opaque black. For complete light blockage, the Black MST™ cap (300-3910-FZ20) is the specification choice. For partial attenuation where some visual inspection of vial contents is still required, Amber provides the intermediate option. Neither Amber nor Chocolate is available in the CryoSure® range.\u003c\/p\u003e \u003cp\u003eAt $19.78 per 200\/Bag — $0.0989 per cap.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications — Caplugs® Evergreen \u003c\/h2\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eSpecification\u003c\/th\u003e \u003cth\u003eValue\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003ePart Number\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCaplugs Item #\u003c\/td\u003e \u003ctd\u003e3003910FN20E1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSub-brand\u003c\/td\u003e \u003ctd\u003eMST™ (Caplugs® Evergreen)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCap Profile\u003c\/td\u003e \u003ctd\u003eFlat Top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMaterial\u003c\/td\u003e \u003ctd\u003eHigh-Density Polyethylene (HDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eColor\u003c\/td\u003e \u003ctd\u003eAmber\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCryo Rating\u003c\/td\u003e \u003ctd\u003eLN₂ vapor phase and immersion (-196°C)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eStorage\u003c\/td\u003e \u003ctd\u003e✓ -80°C and -196°C compatible\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLight Attenuation\u003c\/td\u003e \u003ctd\u003ePartial UV\/visible — amber HDPE reduces light transmission\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAutoclave\u003c\/td\u003e \u003ctd\u003e✓ Compatible (121°C \/ 15 psi)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003evs CryoSure®\u003c\/td\u003e \u003ctd\u003eDifferent thread and cap profile — MST™ vials only\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePack Size\u003c\/td\u003e \u003ctd\u003e200\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBPA\/Phthalate\u003c\/td\u003e \u003ctd\u003eBPA-free; no phthalate plasticizers\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCountry of Origin\u003c\/td\u003e \u003ctd\u003eMade in U.S.A. (California)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eMST™ Flat Top Cap Compatibility — Amber\u003c\/h2\u003e \u003cp\u003eThe MST™ flat-top cap fits MST™ cryogenic vials for:\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003cth\u003eUse \/ Storage\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eCryo vial capping (flat top)\u003c\/td\u003e \u003ctd\u003eMST™ cryogenic vials\u003c\/td\u003e \u003ctd\u003eFlat top — distinct from CryoSure® dome-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLN₂ vapor phase archive\u003c\/td\u003e \u003ctd\u003eBiobank LN₂ vapor phase at -196°C\u003c\/td\u003e \u003ctd\u003eHDPE engineered for LN₂ temperatures\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e-80°C mechanical freezer\u003c\/td\u003e \u003ctd\u003eUltra-low temp biorepository\u003c\/td\u003e \u003ctd\u003eHDPE cryo stability\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLight attenuation (Amber)\u003c\/td\u003e \u003ctd\u003eSemi-light-sensitive specimen storage\u003c\/td\u003e \u003ctd\u003eAmber cap: partial UV\/visible attenuation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eColor-coded cryo routing\u003c\/td\u003e \u003ctd\u003eMulti-specimen cryo box organization\u003c\/td\u003e \u003ctd\u003e12 colors including Chocolate and Amber\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFlat-top cryo box stacking\u003c\/td\u003e \u003ctd\u003eHigh-density cryo box programs\u003c\/td\u003e \u003ctd\u003eFlat top improves stacking vs dome-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAutomated cap handling\u003c\/td\u003e \u003ctd\u003eRobotic cryo vial programs\u003c\/td\u003e \u003ctd\u003eFlat profile for consistent robotic engagement\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eReplacement cap supply\u003c\/td\u003e \u003ctd\u003eReplacing lost\/damaged MST™ vial caps\u003c\/td\u003e \u003ctd\u003eThread specific to MST™ vials only\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003cem\u003eMST™ caps are for MST™ vials only — not interchangeable with CryoSure® vials. Validate fit with a sample before bulk purchase.\u003c\/em\u003e\u003c\/p\u003e \u003ch2\u003eChemical Resistance — HDPE MST™ Cryogenic Grade\u003c\/h2\u003e \u003cp\u003eMST™ HDPE maintains integrity from +121°C autoclave through -196°C LN₂.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eReagent \/ Condition\u003c\/th\u003e \u003cth\u003eCompatibility\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eLiquid nitrogen (-196°C)\u003c\/td\u003e \u003ctd\u003e✓ Engineered for LN₂ vapor + immersion\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eStorage at -80°C\u003c\/td\u003e \u003ctd\u003e✓ Excellent — HDPE cryo-toughened\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDMSO (cryoprotectant conc.)\u003c\/td\u003e \u003ctd\u003e✓ Good — 5–10% standard cryo media\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAqueous cryoprotectants\u003c\/td\u003e \u003ctd\u003e✓ Excellent\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAutoclave (121°C)\u003c\/td\u003e \u003ctd\u003e✓ Compatible\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eConcentrated organic solvents\u003c\/td\u003e \u003ctd\u003e✗ Not recommended\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eComplete MST™ Cap Range — 12 Colors\u003c\/h2\u003e \u003cp\u003eAll 12 colors in 200\/Bag at $19.78. Chocolate (FM20) and Amber (FN20) are exclusive to MST™:\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003cth\u003eColor\u003c\/th\u003e \u003cth\u003ePrimary Use\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e300-3910-F020\u003c\/td\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003ctd\u003eUniversal \/ label-based ID\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FB20\u003c\/td\u003e \u003ctd\u003eBlue\u003c\/td\u003e \u003ctd\u003eCitrate \/ CLSI blue-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FE20\u003c\/td\u003e \u003ctd\u003eOrange\u003c\/td\u003e \u003ctd\u003eSTAT \/ priority cryo batch\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FG20\u003c\/td\u003e \u003ctd\u003eGreen\u003c\/td\u003e \u003ctd\u003eSpecimen-type or batch designation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FL20\u003c\/td\u003e \u003ctd\u003eLavender\u003c\/td\u003e \u003ctd\u003eEDTA anticoagulant \/ lavender-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FM20\u003c\/td\u003e \u003ctd\u003eChocolate\u003c\/td\u003e \u003ctd\u003eSpecialized batch — unique to MST™\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u003cstrong\u003eAmber\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eLight attenuation — unique to MST™\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FP20\u003c\/td\u003e \u003ctd\u003eFuchsia\u003c\/td\u003e \u003ctd\u003eGYN \/ anatomic pathology batches\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FR20\u003c\/td\u003e \u003ctd\u003eRed\u003c\/td\u003e \u003ctd\u003eSerum \/ CLSI red-top convention\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FW20\u003c\/td\u003e \u003ctd\u003eWhite\u003c\/td\u003e \u003ctd\u003eHigh-contrast label surface\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FY20\u003c\/td\u003e \u003ctd\u003eYellow\u003c\/td\u003e \u003ctd\u003eSPS\/ACD \/ CLSI yellow-top\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e300-3910-FZ20\u003c\/td\u003e \u003ctd\u003eBlack\u003c\/td\u003e \u003ctd\u003eLight-sensitive specimen protection\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eLaboratory Applications\u003c\/h2\u003e \u003cp\u003eMST™ serves biobank programs using MST™ vials with amber color-coded routing; laboratories requiring partial UV\/visible light protection on flat-top cryo vials as an intermediate between clear and black; and any MST™ vial workflow requiring cryo-rated HDPE closure at -196°C LN₂.\u003c\/p\u003e \u003ch2\u003eU.S. Manufacturing, Quality \u0026amp; Institutional Procurement\u003c\/h2\u003e \u003cp\u003eEvery Caplugs® Evergreen lot is precision-molded at our California manufacturing facility. We supply reference laboratories, hospital systems, and federal procurement offices under institutional pricing programs. \u003ca href=\"#request-sample\"\u003eRequest a free sample below\u003c\/a\u003e to validate fit before committing to volume.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions — Caplugs® Evergreen \u003c\/h2\u003e \u003ch3\u003eWhat is the color convention for amber MST™ flat-top cryo caps?\u003c\/h3\u003e \u003cp\u003eAmber MST™ caps are the second MST™-exclusive color alongside Chocolate — not available in CryoSure®. Amber HDPE provides partial UV and visible light attenuation, reducing light transmission to the vial contents for specimens sensitive to light but where complete black-out is not required. Amber caps are a well-established convention in pharmaceutical and clinical chemistry for semi-protected storage, bridging the gap between clear caps (no protection) and black caps (complete blockage). All 12 MST™ colors are priced uniformly at $19.78\/200-bag.\u003c\/p\u003e \u003ch3\u003eHow does Amber light protection compare to Black for MST™ cryo caps?\u003c\/h3\u003e \u003cp\u003eBlack (300-3910-FZ20) provides complete light blockage — opaque HDPE absorbs virtually all visible and UV light, protecting the most photosensitive analytes (bilirubin, porphyrins, certain TDM drugs). Amber  provides partial UV and visible attenuation — amber-colored HDPE reduces light transmission significantly but remains translucent enough for visual inspection of vial contents. Choose Amber when some light protection is required but the ability to visually verify vial contents is also needed; choose Black when maximum light exclusion is the priority.\u003c\/p\u003e \u003ch3\u003eAre MST™ caps compatible with LN₂ immersion storage?\u003c\/h3\u003e \u003cp\u003eYes. MST™ HDPE caps are engineered for LN₂ vapor phase (-196°C) and direct LN₂ immersion. Do not use standard HDPE tube caps (300-3010, 300-3532, 300-3541) at LN₂ temperatures — use only caps specifically engineered for cryogenic service on your cryo vials.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Flat Top MST\\u2122 Cryogenic Vial Caps, Non-Sterile, High-Density Polyethylene (HDPE), Amber \\u2014 300-3910-FN20 | 200\/Bag | Caplugs\\u00ae Evergreen\",\n  \"description\": \"Caplugs\\u00ae Evergreen 300-3910-FN20. MST\\u2122 flat top HDPE cryo vial caps, amber, 200\/Bag. LN\\u2082 vapor + -80\\u00b0C. BPA-free. USA.\",\n  \"sku\": \"3003910FN20E1\",\n  \"mpn\": \"300-3910-FN20\",\n  \"material\": \"High-Density Polyethylene (HDPE)\",\n  \"color\": \"Amber\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs\\u00ae Evergreen\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Caplugs\\u00ae Evergreen\",\n    \"address\": {\n      \"@type\": \"PostalAddress\",\n      \"addressCountry\": \"US\",\n      \"addressRegion\": \"CA\"\n    }\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"19.78\",\n    \"priceCurrency\": \"USD\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"LabSupplies\"\n    }\n  },\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Sub-brand\",\n      \"value\": \"MST\\u2122\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Cap Profile\",\n      \"value\": \"Flat Top\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Cryo Rating\",\n      \"value\": \"LN\\u2082 vapor + immersion (-196\\u00b0C)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Pack Size\",\n      \"value\": \"200 \/ Bag\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Sterility\",\n      \"value\": \"Non-Sterile\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Country of Origin\",\n      \"value\": \"United States\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"BPA Free\",\n      \"value\": \"Yes\"\n    }\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the color convention for amber MST\\u2122 flat-top cryo caps?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Amber MST\\u2122 caps are the second MST\\u2122-exclusive color alongside Chocolate \\u2014 not available in CryoSure\\u00ae. Amber HDPE provides partial UV and visible light attenuation, reducing light transmission to the vial contents for specimens sensitive to light but where complete black-out is not required. Amber caps are a well-established convention in pharmaceutical and clinical chemistry for semi-protected storage, bridging the gap between clear caps (no protection) and black caps (complete blockage). All 12 MST\\u2122 colors are priced uniformly at $19.78\/200-bag.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does Amber light protection compare to Black for MST\\u2122 cryo caps?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Black (300-3910-FZ20) provides complete light blockage \\u2014 opaque HDPE absorbs virtually all visible and UV light, protecting the most photosensitive analytes (bilirubin, porphyrins, certain TDM drugs). Amber (300-3910-FN20) provides partial UV and visible attenuation \\u2014 amber-colored HDPE reduces light transmission significantly but remains translucent enough for visual inspection of vial contents. Choose Amber when some light protection is required but the ability to visually verify vial contents is also needed; choose Black when maximum light exclusion is the priority.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are MST\\u2122 caps compatible with LN\\u2082 immersion storage?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. MST\\u2122 HDPE caps are engineered for LN\\u2082 vapor phase (-196\\u00b0C) and direct LN\\u2082 immersion. Do not use standard HDPE tube caps (300-3010, 300-3532, 300-3541) at LN\\u2082 temperatures \\u2014 use only caps specifically engineered for cryogenic service on your cryo vials.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48568506450152,"sku":"300-3910-FN20","price":19.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/300-3910-FN20.png?v=1779115305","url":"https:\/\/labsupplies.com\/products\/caplugs-300-3910-fn20-mst-flat-top-cryo-vial-caps-hdpe-amber","provider":"LabSupplies.com","version":"1.0","type":"link"}