{"product_id":"208-3368-050-five-inch-column","title":"Sample Preparation Columns, 5\" Polystyrene with Fine Filters (15–45 µm), Non-Sterile, 200\/Bag | Caplugs® Evergreen","description":"\u003ch1\u003eCaplugs® Evergreen 5\" Polystyrene Sample Preparation Columns with Fine Filters (15–45 µm), Non-Sterile, 200\/Bag\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eCaplugs® Evergreen 5\" Sample Preparation Columns\u003c\/strong\u003e are molded from clear polystyrene (PS) and fitted with integral fine frits rated at 15–45 microns for reproducible gravity-flow separations. Bench scientists rely on these columns for resin-based protein and peptide purification, small-scale solid-phase extraction, and manual chromatography workflows where controlled, particulate-free flow matters.\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\u003eSample Preparation Columns (gravity-flow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\/Size\u003c\/td\u003e\n\u003ctd\u003e5\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolystyrene (PS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter\u003c\/td\u003e\n\u003ctd\u003eFine frit, 15–45 micron pore\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\u003e200\/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\u003eGravity-flow resin packing for protein and peptide purification\u003c\/li\u003e\n\u003cli\u003eManual solid-phase extraction (SPE) and small-scale cleanup\u003c\/li\u003e\n\u003cli\u003eAffinity and ion-exchange chromatography at the bench\u003c\/li\u003e\n\u003cli\u003eBuffer exchange and desalting with packed media beds\u003c\/li\u003e\n\u003cli\u003eSample fractionation and metabolite preparation\u003c\/li\u003e\n\u003cli\u003eTeaching and method-development separations in research labs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003elabsupplies.com is an authorized Caplugs® Evergreen dealer shipping these columns from US inventory, and the product is Made in USA. Each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact us for volume quotes on SKU 208-3368-050.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the filter pore rating on these columns?\u003c\/h3\u003e\n\u003cp\u003eEach column includes a fine frit rated at 15–45 microns, retaining packed resin and particulates while allowing controlled gravity-driven flow of buffers and sample.\u003c\/p\u003e\n\u003ch3\u003eAre these sample preparation columns sterile?\u003c\/h3\u003e\n\u003cp\u003eNo. These columns ship non-sterile and are intended for research and method-development use. Users requiring sterile conditions should validate their own decontamination or autoclave protocols against polystyrene's temperature limits.\u003c\/p\u003e\n\u003ch3\u003eWhat material are the columns made from?\u003c\/h3\u003e\n\u003cp\u003eThe column bodies are molded from clear polystyrene (PS), offering good optical clarity for monitoring bed packing and flow during purification.\u003c\/p\u003e\n\u003ch3\u003eHow are the columns packaged and sold?\u003c\/h3\u003e\n\u003cp\u003eThey are supplied 200 columns per bag (200\/Bag), priced per pack. Lot numbers on each bag support documentation for accredited laboratory workflows.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"5\\\" Polystyrene Sample Preparation Columns with Fine Filters (15–45 µm), Non-Sterile, 200\/Bag\",\n  \"sku\": \"208-3368-050\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Caplugs® Evergreen\"\n  },\n  \"countryOfOrigin\": \"USA\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"135.89\",\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 is the filter pore rating on these columns?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each column includes a fine frit rated at 15–45 microns, retaining packed resin and particulates while allowing controlled gravity-driven flow of buffers and sample.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these sample preparation columns sterile?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These columns ship non-sterile and are intended for research and method-development use. Users requiring sterile conditions should validate their own decontamination or autoclave protocols against polystyrene's temperature limits.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What material are the columns made from?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The column bodies are molded from clear polystyrene (PS), offering good optical clarity for monitoring bed packing and flow during purification.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How are the columns packaged and sold?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"They are supplied 200 columns per bag (200\/Bag), priced per pack. Lot numbers on each bag support documentation for accredited laboratory workflows.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Caplugs® Evergreen","offers":[{"title":"Default Title","offer_id":48555937399016,"sku":"2083368050E1","price":135.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/208-3383-060_01_33c01959-57c9-48eb-87d8-c90e9cfc0cc5.jpg?v=1778723123","url":"https:\/\/labsupplies.com\/products\/208-3368-050-five-inch-column","provider":"LabSupplies.com","version":"1.0","type":"link"}