{"product_id":"globe-tip-154005","title":"20 µL PosiStop Pipette Tips, Graduated, Bulk Bag — Sterile \u0026 Non-Sterile, 1000\/Bag | Globe Scientific","description":"\u003ch2\u003e20 µL PosiStop Pipette Tips, Graduated, Bulk Bag — 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGlobe Scientific PosiStop Pipette Tips\u003c\/strong\u003e deliver a consistent positive-stop seat on compatible micropipettes, supporting reproducible 20 µL aspiration for PCR setup, serial dilutions, and routine reagent transfer. Molded graduations let bench scientists verify draw volumes at a glance, while the bulk bag format keeps high-throughput workflows stocked at a low per-tip cost.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003ePosiStop pipette tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e20 µL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eVirgin polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eOpen tip, positive-stop seating collar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003ctd\u003eMolded graduations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSterility\u003c\/th\u003e\n\u003ctd\u003eNon-sterile or sterile (variant-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e1000 tips per bulk bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Packagings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003ePrice (per bag of 1000)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulk Bag\u003c\/td\u003e\n\u003ctd\u003e154005\u003c\/td\u003e\n\u003ctd\u003e$17.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulk Bag, Sterile\u003c\/td\u003e\n\u003ctd\u003e154005S\u003c\/td\u003e\n\u003ctd\u003e$23.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePCR and qPCR master mix and template dispensing\u003c\/li\u003e\n\u003cli\u003eSerial dilution series for assay standard curves\u003c\/li\u003e\n\u003cli\u003eReagent aliquoting in molecular biology workflows\u003c\/li\u003e\n\u003cli\u003eLoading low-volume samples for spectrophotometry\u003c\/li\u003e\n\u003cli\u003eEnzyme and buffer additions during kit-based protocols\u003c\/li\u003e\n\u003cli\u003eGeneral microliter transfers at the analytical bench\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eOrder from labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each bulk bag carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our team for volume quotes on standing tip orders.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between SKU 154005 and 154005S?\u003c\/h3\u003e\n\u003cp\u003eBoth are 20 µL graduated PosiStop tips in bags of 1000. SKU 154005 is non-sterile for general use, while 154005S is supplied sterile for nuclease-sensitive and contamination-critical applications.\u003c\/p\u003e\n\u003ch3\u003eAre these tips graduated?\u003c\/h3\u003e\n\u003cp\u003eYes. Both packaging options feature molded graduations, allowing operators to visually confirm aspirated volume during low-volume pipetting.\u003c\/p\u003e\n\u003ch3\u003eHow many tips are in each bag?\u003c\/h3\u003e\n\u003cp\u003eEach bulk bag contains 1000 tips. The listed price is per bag for both the sterile and non-sterile options.\u003c\/p\u003e\n\u003ch3\u003eWill PosiStop tips fit my pipette?\u003c\/h3\u003e\n\u003cp\u003ePosiStop tips are designed with a positive-stop collar for a consistent seat on compatible micropipettes. 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