{"product_id":"230-1091-03k-pipet-tip","title":"5–200 µL Pipet Tips, Two-Step Tiered, PP, Natural, Oxford\/MLA Compatible — 230-1091-03K | 1000\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eQuick Reference\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e230-1091-03K\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eVolume Range\u003c\/th\u003e \u003ctd\u003e5–200 µL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Style\u003c\/th\u003e \u003ctd\u003eTwo-Step Tiered — two-tiered fitting for positive-lock engagement\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eFits\u003c\/th\u003e \u003ctd\u003eMLA® \/ Abbott® \/ Pfizer® \/ Quickpette®\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eNon-Sterile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e1000\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eOrigin\u003c\/th\u003e \u003ctd\u003eMade in USA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$43.75\/Bag ($0.0438\/tip)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen \u003cstrong\u003e230-1091-03K\u003c\/strong\u003e provides \u003cstrong\u003e5–200 µL Two-Step Tiered PP Pipet Tips\u003c\/strong\u003e, 1000\/Bag, as replacement tips for MLA® \/ Abbott® \/ Pfizer® \/ Quickpette® pipettors. The two-step tiered geometry features a stepped fitting profile that engages positively with the pipettor cone, providing a secure seal and repeatable tip ejection — the two steps accommodate slight variation in pipettor cone diameter across the supported brands. These tips replace the OEM tips for MLA, Abbott, Pfizer, and Quickpette instruments in clinical and research laboratory settings at below-OEM pricing.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePP\u003c\/strong\u003e: chemical resistance to standard aqueous and mildly organic lab samples, low extractables, compatible with standard pipettor autoclave sterilization if needed (tips only — verify pipettor compatibility). Non-Sterile. BPA-free, \u003c\/p\u003e \u003cp\u003eProcurement economics: \u003cstrong\u003e$43.75\/Bag (1000 tips)\u003c\/strong\u003e, \u003cstrong\u003e$0.0438\/tip\u003c\/strong\u003e. Related: \u003cstrong\u003e230-1092-Y3K\u003c\/strong\u003e (250-500 µL Yellow Oxford®\/Abbott®\/Pfizer®\/Quickpette® 1000\/Bag). LabSupplies.com ships from USA inventory, typically same business day.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCaplugs Item #\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eVolume Range\u003c\/th\u003e \u003ctd\u003e5–200 µL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Style\u003c\/th\u003e \u003ctd\u003eTwo-Step Tiered\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCompatible Pipettors\u003c\/th\u003e \u003ctd\u003eMLA® \/ Abbott® \/ Pfizer® \/ Quickpette®\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eNon-Sterile\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e1000\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBPA \/ Phthalate\u003c\/th\u003e \u003ctd\u003eBPA-Free, Phthalate-Free, Latex-Free\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCountry of Origin\u003c\/th\u003e \u003ctd\u003eUSA \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$43.75\/Bag ($0.0438\/tip)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTwo-Step Tiered Pipet Tip (5–200 µL) Applications\u003c\/h2\u003e \u003cp\u003eThe is compatible with MLA® \/ Abbott® \/ Pfizer® \/ Quickpette® pipettors as a replacement tip for the following workflows.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003cth\u003eSetting \/ Configuration\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eSample dispensing\u003c\/th\u003e \u003ctd\u003eMLA® \/ Abbott® \/ Pfizer® \/ Quickpette® pipettor, 5–200 µL\u003c\/td\u003e \u003ctd\u003eTwo-step tiered: secure fit across all four compatible pipettor brands\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eReagent transfer\u003c\/th\u003e \u003ctd\u003eManual or semi-automated dispensing\u003c\/td\u003e \u003ctd\u003ePP: chemical resistance to standard lab reagents\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSerial dilution\u003c\/th\u003e \u003ctd\u003eClinical lab, analytical chemistry\u003c\/td\u003e \u003ctd\u003e5–200 µL range covers micro-volume serial dilutions\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSample prep\u003c\/th\u003e \u003ctd\u003eClinical lab sample preparation workflow\u003c\/td\u003e \u003ctd\u003eReplacement tip — cost-effective alternative to OEM tips\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePCR setup\u003c\/th\u003e \u003ctd\u003eSmall-volume nucleic acid dispensing\u003c\/td\u003e \u003ctd\u003ePP: compatible with standard PCR reagents\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSpectrophotometry\u003c\/th\u003e \u003ctd\u003eCuvette loading, spectrophotometer prep\u003c\/td\u003e \u003ctd\u003e5–200 µL for cuvette fill volumes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eHigh-volume lab use\u003c\/th\u003e \u003ctd\u003e1000\/Bag: bulk non-sterile for routine use\u003c\/td\u003e \u003ctd\u003eNon-sterile for general bench dispensing; autoclave if sterility needed\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eChemical Resistance — PP Pipet Tip\u003c\/h2\u003e \u003cp\u003eCompatibility reference at typical laboratory conditions.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eReagent \/ Condition\u003c\/th\u003e \u003cth\u003eCompatibility\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003ePP compatible across standard biological buffer pH.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDilute acids\/bases (\u0026lt;10%)\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003ePP: broad acid\/base resistance.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEthanol (\u0026lt;70%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eShort-term compatible for alcohol solutions.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMethanol (\u0026lt;50%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eCompatible for analytical dilutions.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAcetonitrile\u003c\/td\u003e \u003ctd\u003eLimited\u003c\/td\u003e \u003ctd\u003eBrief contact acceptable; avoid prolonged immersion.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDMSO (\u0026lt;10%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eCompatible at standard sample concentrations.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAcetone \/ chloroform\u003c\/td\u003e \u003ctd\u003eNot Compatible\u003c\/td\u003e \u003ctd\u003eDissolves or causes stress; avoid.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eStrong oxidizing agents\u003c\/td\u003e \u003ctd\u003eLimited\u003c\/td\u003e \u003ctd\u003eAvoid concentrated H2O2 or strong oxidizers.\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eClinical \u0026amp; Research Laboratory Applications\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen 5–200 µL two-step tiered PP pipet tips serve clinical laboratories and analytical facilities using MLA, Abbott, Pfizer, or Quickpette pipettors as cost-effective OEM replacements. These instruments are used extensively in clinical chemistry analyzers and manual pipetting workflows for serum, plasma, and urine sample preparation, reagent dispensing, and sample transfer steps. The two-step tiered geometry provides secure positive-seal engagement across all four compatible pipettor brands despite slight dimensional differences in cone taper between manufacturers. The non-sterile 1000\/Bag format is appropriate for general bench use where sterility is not a requirement.\u003c\/p\u003e \u003ch2\u003eU.S. Manufacturing, Quality \u0026amp; Institutional Procurement\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen products are manufactured in the United States under ISO 9001 quality management from FDA-compliant, food-contact-grade resins. BPA-free, phthalate-free, and latex-free, with material-disclosure documentation supporting CAP, CLIA, and ISO 15189 laboratory accreditation audits.\u003c\/p\u003e \u003cp\u003eLabSupplies.com is an authorized dealer for the full Caplugs Evergreen catalog and ships directly from USA inventory — typically same business day for stocking SKUs. We offer below retail pricing on volume orders, tiered institutional and academic pricing, and direct support for grant-funded laboratories and government procurement channels. Lab managers and procurement officers can \u003ca href=\"#request-sample\"\u003erequest a written quote or speak with a product specialist\u003c\/a\u003e directly from our sales engineering team.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e \u003ch3\u003eAre the pipet tips sterile?\u003c\/h3\u003e \u003cp\u003eNo. Non-Sterile — packed 1000\/Bag for general bench use.\u003c\/p\u003e \u003ch3\u003eAre these tips compatible with all four brands listed (MLA® \/ Abbott® \/ Pfizer® \/ Quickpette®)?\u003c\/h3\u003e \u003cp\u003eThe two-step tiered geometry is designed to fit the pipettor cone dimensions of MLA, Abbott, Pfizer, and Quickpette pipettors. Verify fit with your specific pipettor model before switching from OEM tips — test one bag on your instrument and confirm seal, tip retention, and ejection before committing to bulk purchase.\u003c\/p\u003e \u003ch3\u003eWhat does 'Two-Step Tiered' mean for these pipet tips?\u003c\/h3\u003e \u003cp\u003eTwo-step tiered refers to the tip's fitting geometry: instead of a smooth taper, the tip has two stepped (tiered) fitting surfaces that engage at two distinct diameters on the pipettor cone. This provides a more positive mechanical lock than a simple taper, improving seal reliability and reducing tip-off force — ensuring tips don't fall off during sample transfer or centrifugation.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Caplugs® Evergreen 230-1091-03K | 5–200 µL Pipet Tips, Two-Step Tiered, MLA® \/ Abbott® \/ Pfizer® \/ Quickpette® Replacement, Non-Sterile — PP, Natural, 1000\/Bag\", \"sku\": \"230109103KE1\", \"mpn\": \"230-1091-03K\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Caplugs® Evergreen\"}, \"manufacturer\": {\"@type\": \"Organization\", \"name\": \"Caplugs® Evergreen\", \"address\": \"USA\"}, \"material\": \"Polypropylene (PP)\", \"color\": \"Natural\", \"image\": \"https:\/\/prod-cp-cdn-images.azureedge.net\/catalog\/92300\/9093F9E9-0629-4E5F-B21B-39C8A1BB4B87\/230-1091-03K_02.jpg\", \"description\": \"Caplugs® Evergreen 230-1091-03K: 5–200 µL Two-Step Tiered Pipet Tips, MLA® \/ Abbott® \/ Pfizer® \/ Quickpette® Replacement, Non-Sterile, PP, Natural.\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Volume\", \"value\": \"5–200 µL\"}, {\"@type\": \"PropertyValue\", \"name\": \"Style\", \"value\": \"Two-Step Tiered\"}, {\"@type\": \"PropertyValue\", \"name\": \"Fits\", \"value\": \"MLA® \/ Abbott® \/ Pfizer® \/ Quickpette®\"}, {\"@type\": \"PropertyValue\", \"name\": \"Material\", \"value\": \"Polypropylene (PP)\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pack\", \"value\": \"1000\/Bag\"}, {\"@type\": \"PropertyValue\", \"name\": \"Sterility\", \"value\": \"Non-Sterile\"}, {\"@type\": \"PropertyValue\", \"name\": \"Origin\", \"value\": \"USA\"}], \"offers\": {\"@type\": \"Offer\", \"priceCurrency\": \"USD\", \"price\": \"43.75\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/labsupplies.com\/products\/230-1091-03k-pipet-tip\"}}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 230-1091-03K pipet tips sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. Non-Sterile — packed 1000\/Bag for general bench use.\"}}, {\"@type\": \"Question\", \"name\": \"Are these tips compatible with all four brands listed (MLA® \/ Abbott® \/ Pfizer® \/ Quickpette®)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The two-step tiered geometry is designed to fit the pipettor cone dimensions of MLA, Abbott, Pfizer, and Quickpette pipettors. 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