Blue Polyethylene Plug Caps for 12 mm and 16 mm Test Tubes, 1000/Bag These Globe Scientific Plug Caps deliver a secure snap-fit seal for standard 12 mm and 16 mm round-bottom and culture tubes. Color-coded in blue for fast rack identification, they suit sample storage, specimen transport, and routine clinical and microbiology workflows where reliable, reusable closures keep contents contained and organized. Technical Specifications Product Type Plug Cap (push-in tube closure) Size Range 12 mm and 16 mm tube diameters Material Polyethylene Closure Snap-fit plug, blue Sterility Non-sterile Pack Size 1000 caps per bag Available Sizes Size SKU Price (per bag of 1000) 12 mm 118139B $39.20 16 mm 116142B $55.50 Applications Sealing 12 mm and 16 mm culture and test tubes during sample storage Specimen transport where a secure push-in closure is required Color-coded rack organization by tube size or sample type Microbiology workflows using round-bottom tubes Routine clinical and serology bench protocols Short-term refrigerated sample retention Quality & Procurement Supplied by labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each bag carries a lot number to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Frequently Asked Questions What tube sizes do these plug caps fit? Two diameters are offered: SKU 118139B fits 12 mm tubes and SKU 116142B fits 16 mm tubes. Match the cap to the outer tube diameter for a proper snap-fit seal. What material are the caps made from? Both sizes are molded from polyethylene, providing flexible push-in retention and broad compatibility with aqueous samples and standard refrigerated storage. Are these caps sterile? No. The caps ship non-sterile in bags of 1000. For aseptic protocols, autoclave or sterilize per your lab's validated procedure before use. How are the caps packaged and sold? Each SKU is sold per bag of 1000 caps. Pricing shown is per bag, and lot numbers on each bag support documentation for accredited workflows. { "@context": "https://schema.org", "@type": "Product", "name": "Globe Scientific Plug Caps for 12 mm and 16 mm Test Tubes, Blue, 1000/Bag", "brand": { "@type": "Brand", "name": "Globe Scientific" }, "material": "Polyethylene", "offers": { "@type": "AggregateOffer", "priceCurrency": "USD", "lowPrice": "39.20", "highPrice": "55.50", "offerCount": "2", "offers": [ { "@type": "Offer", "sku": "118139B", "price": "39.20", "priceCurrency": "USD" }, { "@type": "Offer", "sku": "116142B", "price": "55.50", "priceCurrency": "USD" } ] } } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What tube sizes do these plug caps fit?", "acceptedAnswer": { "@type": "Answer", "text": "Two diameters are offered: SKU 118139B fits 12 mm tubes and SKU 116142B fits 16 mm tubes. Match the cap to the outer tube diameter for a proper snap-fit seal." } }, { "@type": "Question", "name": "What material are the caps made from?", "acceptedAnswer": { "@type": "Answer", "text": "Both sizes are molded from polyethylene, providing flexible push-in retention and broad compatibility with aqueous samples and standard refrigerated storage." } }, { "@type": "Question", "name": "Are these caps sterile?", "acceptedAnswer": { "@type": "Answer", "text": "No. The caps ship non-sterile in bags of 1000. For aseptic protocols, autoclave or sterilize per your lab's validated procedure before use." } }, { "@type": "Question", "name": "How are the caps packaged and sold?", "acceptedAnswer": { "@type": "Answer", "text": "Each SKU is sold per bag of 1000 caps. Pricing shown is per bag, and lot numbers on each bag support documentation for accredited workflows." } } ] }
