{"product_id":"conical-centrifuge-tubes-50ml-500-pack-sterile-screw-cap-tubes","title":"Conical Centrifuge Tubes 50mL 500 Pack - Sterile Screw Cap Tubes","description":"\u003cp\u003eIn this review of the Conical Centrifuge Tubes 50mL 500 Pack, the bottom line is simple: these tubes are designed for labs or hobbyists who need a large quantity of reliable, sterile containers that seal well and measure accurately. They stand out because of the combination of EO sterilization, a secure polyethylene screw cap, and precise printed graduations, making them suitable for everything from sample collection to pre-measured materials. For anyone needing many reusable, high-RCF tubes, this pack offers practical value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable polypropylene:\u003c\/strong\u003e The tubes are made from high-purity polypropylene that withstands autoclaving and supports a maximum RCF of 12,000 x g, so they hold up during high-speed spins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure screw caps:\u003c\/strong\u003e Each tube includes a polyethylene cap that seals tightly to prevent leakage, making them usable for liquids, powders, and small solids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEO sterilized:\u003c\/strong\u003e Tubes arrive sterilized with ethylene oxide so they are ready for sensitive uses such as biological work or handling sterile materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrinted graduations:\u003c\/strong\u003e Precise, easy-to-read graduation markings let users measure and document volumes quickly without extra tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrite-on spot:\u003c\/strong\u003e A designated white area allows clear labeling and quick identification when sorting samples or pre-measuring ingredients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge pack size:\u003c\/strong\u003e The 500-count supply is convenient for labs, classrooms, or projects that require many single-use or reusable tubes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese 50 mL centrifuge tubes are best for research labs, teaching labs, biotech startups, and serious hobbyists who need a reliable bulk supply of sterile containers that can be autoclaved and centrifuged at high speeds. The pack size and durability suit workflows that generate many samples or require repeated use.\u003c\/p\u003e\n\u003cp\u003eThey may not be ideal for users who need specialty materials (for example, tubes made from specific low-bind plastics) or for single-item retail buyers who do not require 500 pieces. If you need fewer tubes or a different cap style, consider smaller packs or alternate tube designs.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-purity polypropylene construction that tolerates autoclave cycles and high RCF.\u003c\/li\u003e\n\u003cli\u003eSecure polyethylene screw caps that customers report seal well and prevent leaks.\u003c\/li\u003e\n\u003cli\u003ePre-printed graduations and a white write-on spot for clear measurement and labeling.\u003c\/li\u003e\n\u003cli\u003eEO sterilized on arrival, making them usable for sterile workflows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePack of 500 may be excessive for occasional users or small projects.\u003c\/li\u003e\n\u003cli\u003eColor options or cap colors are not specified, limiting visual sample coding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e50 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-purity polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterilization\u003c\/td\u003e\n\u003ctd\u003eEO sterilized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax RCF\u003c\/td\u003e\n\u003ctd\u003e12,000 x g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\u003c\/td\u003e\n\u003ctd\u003ePolyethylene screw cap (leak-proof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e500 tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarking\u003c\/td\u003e\n\u003ctd\u003ePrinted graduations and white write-on spot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThese 50 mL conical centrifuge tubes are a solid choice for labs and serious hobbyists who need a bulk supply of sterile, high-RCF-capable tubes with reliable sealing and clear measurement markings. They offer good value when many tubes are required and perform well for both liquid and solid samples; consider smaller quantities only if you do not need 500 pieces.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these tubes sterile out of the package?\u003c\/strong\u003e\u003cbr\u003eYes, the tubes are EO sterilized on delivery and are ready for sterile use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these tubes be centrifuged at high speed?\u003c\/strong\u003e\u003cbr\u003eYes, the polypropylene construction supports a maximum RCF of 12,000 x g, suitable for high-speed centrifugation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the caps prevent leaks reliably?\u003c\/strong\u003e\u003cbr\u003eCustomers report the polyethylene screw caps seal securely and prevent leakage for both liquids and powders.\u003c\/p\u003e","brand":"Kashi Scientific","offers":[{"title":"Default Title","offer_id":48243191185627,"sku":"B0C3G9STC5","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71yXmU5dw4L._SL1500.jpg?v=1771066186","url":"https:\/\/gearmusthave.com\/products\/conical-centrifuge-tubes-50ml-500-pack-sterile-screw-cap-tubes","provider":"GearMustHave","version":"1.0","type":"link"}