{"product_id":"50-slot-plastic-test-tube-rack-18mm-centrifuge-sampling-tubes","title":"50-Slot Plastic Test Tube Rack – 18mm, 5–15mL Tubes","description":"\u003ch2\u003e50-Slot Plastic Test Tube Rack – Organize Up to 50 Tubes at Once\u003c\/h2\u003e\n\u003cp\u003eKeep your lab bench, classroom, or workspace neat and efficient with this sturdy \u003cstrong\u003e50-slot plastic test tube rack\u003c\/strong\u003e. Designed to hold tubes with a diameter of \u003cstrong\u003e12–18mm\u003c\/strong\u003e, it accommodates popular 5mL, 10mL, and 15mL centrifuge and sampling tubes with ease. The low-profile stand keeps tubes upright and accessible, reducing the risk of spills and mix-ups during your workflow.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50 Slots\u003c\/strong\u003e – Holds up to 50 test tubes simultaneously for high-volume organization\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit\u003c\/strong\u003e – Compatible with 12–18mm diameter tubes, including 5mL, 10mL, and 15mL centrifuge tubes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Construction\u003c\/strong\u003e – Lightweight yet sturdy; easy to clean and resistant to common lab chemicals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Footprint\u003c\/strong\u003e – Dimensions: 250 × 125 × 50mm (9.84 × 4.92 × 1.97 in) — fits neatly on any bench or shelf\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat Base Design\u003c\/strong\u003e – Keeps the rack stable on flat surfaces, preventing tipping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use\u003c\/strong\u003e – Ideal for science labs, classrooms, home chemistry sets, and specimen storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Slots\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHole Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18mm (fits 12–18mm tubes)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Tube Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5mL, 10mL, 15mL centrifuge \/ sampling tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 × 125 × 50mm (9.84 × 4.92 × 1.97 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 50-Slot Plastic Test Tube Rack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 1–2cm tolerance due to manual measurement. Colors may vary slightly between monitors and actual product.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-set-pottery-clay-sculpting-tools-smoothing-wax-carving-pottery-ceramic-tools-polymer-shapers-modeling-carved-tool-sculpture\"\u003ePottery Clay Sculpting Tools – Smoothing, Wax Carving \u0026amp; Shaping Set\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.ready.gov\/kit\" target=\"_blank\" rel=\"noopener\"\u003eReady.gov emergency supply guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What tube sizes fit in this 50-slot test tube rack?\u003c\/h4\u003e\n\u003cp\u003eA: This plastic test tube rack is designed for tubes with an outer diameter of 12–18mm, making it compatible with standard 5mL, 10mL, and 15mL centrifuge tubes and sampling tubes.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the test tube rack suitable for classroom or home use?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The 50-slot rack is made from durable, lightweight plastic, making it a great choice for school science labs, home chemistry kits, or any workspace that needs organized tube storage.\u003c\/p\u003e\n\u003ch4\u003eQ: How large is the rack overall?\u003c\/h4\u003e\n\u003cp\u003eA: The rack measures 250 × 125 × 50mm (approximately 9.84 × 4.92 × 1.97 inches), giving it a compact footprint that fits easily on a lab bench, desk, or shelf.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What tube sizes fit in this 50-slot test tube rack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This plastic test tube rack is designed for tubes with an outer diameter of 12–18mm, making it compatible with standard 5mL, 10mL, and 15mL centrifuge tubes and sampling tubes.\"}}, {\"@type\": \"Question\", \"name\": \"Is the test tube rack suitable for classroom or home use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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