1000 µL PosiStop Graduated Pipette Tips — Bulk, Racked, GreenRack & Refill (8 Packaging Options) Globe Scientific PosiStop Pipette Tips deliver a defined positive-stop collar that seats the tip consistently on the pipette shaft, improving seal reliability and run-to-run reproducibility for liquid handling. Graduated markings support visual volume confirmation during serial dilutions, reagent aliquoting, and PCR/qPCR setup. Choose from bulk, pre-racked, eco-friendly GreenRack, and refill formats in sterile or non-sterile. Technical Specifications Product Type PosiStop universal pipette tip, positive-stop collar Volume/Size 1000 µL (1 mL) Material Virgin polypropylene Closure/Cap N/A — open pipette tip Graduation Graduated for visual volume reference Sterility Available sterile and non-sterile Pack Size Bulk: 1000/bag; Racked/GreenRack: 96/rack, 6 racks/box (576/box); Refill: 96/refill, 6 refills/box (576/box) Available Packagings Packaging SKU Price (per pack) Bulk Bag (1000/bag) 154035 $29.10 Bulk Bag, Sterile (1000/bag) 154035S $38.40 Racked (96/rack, 6 racks/box) 154035R $49.00 Racked, Sterile (96/rack, 6 racks/box) 154035RS $56.40 GreenRack (96/rack, 6 racks/box) 154035ER $47.40 GreenRack, Sterile (96/rack, 6 racks/box) 154035ERS $55.60 Refill (96/refill, 6 refills/box) 154035F $29.30 Refill, Sterile (96/refill, 6 refills/box) 154035FS $36.50 Applications Reagent aliquoting and master-mix dispensing in PCR/qPCR workflows Serial dilutions where graduated tips aid volume verification Buffer and media transfer in molecular biology and cell culture prep High-throughput plating using pre-racked or GreenRack formats Sterile sample handling for nucleic acid and microbiology work (sterile SKUs) Routine bench pipetting where bulk-bag economy is preferred Quality & Procurement Sold by labsupplies.com as an authorized Globe Scientific dealer, shipping from US inventory. Each bag, box, and refill carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Frequently Asked Questions What does the "PosiStop" feature do? The PosiStop collar provides a defined positive stop when the tip seats on the pipette shaft, promoting a consistent mounting depth and reliable seal for reproducible volume delivery. What is the difference between the standard Racked and GreenRack formats? Both supply 96 tips per rack, 6 racks per box. GreenRack uses a more material-efficient rack design intended to reduce plastic waste while remaining compatible with standard pipettes. Are the refill formats compatible with reusable rack bases? Yes. Refill inserts (96/refill, 6 refills/box) are designed to reload compatible rack bases, lowering per-tip cost and plastic use versus buying fully racked tips each time. Which SKUs are certified sterile? The sterile options are 154035S (bulk), 154035RS (racked), 154035ERS (GreenRack), and 154035FS (refill). Non-sterile SKUs are not suitable for applications requiring sterility assurance. { "@context": "https://schema.org", "@type": "Product", "name": "PosiStop Pipette Tips, 1000 µL, Graduated", "brand": { "@type": "Brand", "name": "Globe Scientific" }, "description": "1000 µL graduated PosiStop universal pipette tips with positive-stop collar, available in bulk, racked, GreenRack, and refill formats, sterile and non-sterile.", "sku": [ "154035", "154035S", "154035R", "154035RS", "154035ER", "154035ERS", "154035F", "154035FS" ], "offers": { "@type": "AggregateOffer", "priceCurrency": "USD", "lowPrice": "29.10", "highPrice": "56.40", "offerCount": "8", "seller": { "@type": "Organization", "name": "labsupplies.com" } } } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What does the \"PosiStop\" feature do?", "acceptedAnswer": { "@type": "Answer", "text": "The PosiStop collar provides a defined positive stop when the tip seats on the pipette shaft, promoting a consistent mounting depth and reliable seal for reproducible volume delivery." } }, { "@type": "Question", "name": "What is the difference between the standard Racked and GreenRack formats?", "acceptedAnswer": { "@type": "Answer", "text": "Both supply 96 tips per rack, 6 racks per box. GreenRack uses a more material-efficient rack design intended to reduce plastic waste while remaining compatible with standard pipettes." } }, { "@type": "Question", "name": "Are the refill formats compatible with reusable rack bases?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Refill inserts (96/refill, 6 refills/box) are designed to reload compatible rack bases, lowering per-tip cost and plastic use versus buying fully racked tips each time." } }, { "@type": "Question", "name": "Which SKUs are certified sterile?", "acceptedAnswer": { "@type": "Answer", "text": "The sterile options are 154035S (bulk), 154035RS (racked), 154035ERS (GreenRack), and 154035FS (refill). Non-sterile SKUs are not suitable for applications requiring sterility assurance." } } ] }
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