{"product_id":"caplugs-240-6388-030-96-well-microcentrifuge-tube-rack-pp-natural","title":"1.5 mL Tube Racks, HDPE, Natural, Eppendorf\/Thermo Fisher Compatible — 240-6388-030 | 5\/Pack | Caplugs® Evergreen","description":"\u003ch2\u003e96-Position Microcentrifuge Tube Rack — PP, Natural, 1.5 mL \u0026amp; 2.0 mL Compatible (240-6388-030), 5\/Pack\u003c\/h2\u003e\n\u003cp\u003eThe Caplugs® Evergreen 96-position microcentrifuge tube rack organizes standard 1.5 mL and 2.0 mL microcentrifuge tubes in an 8 × 12 grid with 9 mm center-to-center well spacing — matching the SBS microplate footprint for seamless integration with automated liquid-handling platforms and 96-channel pipetting workstations. Molded from virgin polypropylene (PP) in a natural translucent finish, these racks are autoclavable at 121°C and supplied non-sterile in a convenient 5\/Pack format for high-throughput labs that run dedicated rack-per-experiment workflows.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e240-6388-030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e96 positions, 8 × 12 grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWell Spacing\u003c\/td\u003e\n\u003ctd\u003e9 mm center-to-center (SBS microplate footprint)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Capacity\u003c\/td\u003e\n\u003ctd\u003e1.5 mL and 2.0 mL microcentrifuge tubes (11 mm OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eNatural (translucent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Lid\u003c\/td\u003e\n\u003ctd\u003e300-6388 PPC Natural lid (sold separately, 5\/Pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility\u003c\/td\u003e\n\u003ctd\u003eNon-Sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e5\/Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave Compatibility\u003c\/td\u003e\n\u003ctd\u003e121°C \/ 15 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Decontamination\u003c\/td\u003e\n\u003ctd\u003eCompatible (standard 254 nm cycle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalates\u003c\/td\u003e\n\u003ctd\u003eBPA-free; phthalate-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA (California)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePCR setup and reaction staging — the 8 × 12 SBS-footprint grid lets 96-channel pipettors address tubes in standard plate coordinates without reprogramming\u003c\/li\u003e\n\u003cli\u003eSample storage and inventory management for 1.5 mL and 2.0 mL microcentrifuge tubes across clinical, genomics, and biobank workflows\u003c\/li\u003e\n\u003cli\u003eCentrifuge staging and post-spin sample organization in high-throughput processing pipelines\u003c\/li\u003e\n\u003cli\u003eUV decontamination cycles in biological safety cabinets and clean-bench environments between experiments\u003c\/li\u003e\n\u003cli\u003eDedicated rack-per-experiment protocols that eliminate cross-contamination risk from reused labware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe 9 mm center-to-center well spacing accommodates standard 11 mm OD tubes, making these racks compatible with 1.5 mL microcentrifuge tubes from Eppendorf®, Thermo Fisher Scientific, Corning®, and generic suppliers, as well as all brands of 2.0 mL microcentrifuge tubes in the same 11 mm OD format. Caplugs® Evergreen 1.8 mL HDPE tubes (such as part 214-3739-020) also fit the same well positions. Because the 8 × 12 grid matches the standard SBS microplate footprint, these racks integrate directly with robotic tube handlers and automated liquid-handling platforms that address microcentrifuge tubes in plate coordinates. The optional 300-6388 PPC Natural rack lid (sold separately, 5\/Pack) provides dust protection during storage and enables stable stacking of loaded racks.\u003c\/p\u003e\n\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eReagent \/ Condition\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids and bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthanol and isopropanol (\u0026lt;70%)\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for standard disinfection protocols\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthanol and isopropanol (\u0026gt;70%)\u003c\/td\u003e\n\u003ctd\u003eShort-term contact only — prolonged exposure not recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetone \/ chloroform \/ aromatic solvents\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclave (121°C \/ 15 psi steam)\u003c\/td\u003e\n\u003ctd\u003eCompatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV decontamination (254 nm)\u003c\/td\u003e\n\u003ctd\u003eCompatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eMade in USA (California), these Caplugs® Evergreen tube racks are molded from virgin, BPA-free, phthalate-free polypropylene under ISO 9001 quality management, ensuring consistent dimensional tolerances across every rack in the pack. LabSupplies.com is an authorized Caplugs® Evergreen dealer and ships from USA inventory — typically same business day for stocking items. Additional color variants (Blue, Green, Red, Yellow) are available under separate part numbers, enabling color-coded bench organization and multi-project sample management from a single vendor. Tiered pricing is available for high-volume institutional, clinical, and grant-funded laboratory accounts.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan these racks be autoclaved between experiments?\u003c\/strong\u003e\u003cbr\u003eYes — the polypropylene construction is compatible with standard steam autoclave cycles at 121°C \/ 15 psi, making these racks suitable for decontamination protocols between experiments or across shared-lab users.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo these racks fit 2.0 mL tubes as well as 1.5 mL tubes?\u003c\/strong\u003e\u003cbr\u003eYes — the 9 mm center-to-center well spacing accommodates standard 11 mm OD tubes, which covers both 1.5 mL and 2.0 mL microcentrifuge tubes from Eppendorf®, Thermo Fisher Scientific, Corning®, and most generic suppliers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill these racks work with my automated liquid-handling platform?\u003c\/strong\u003e\u003cbr\u003eThe 8 × 12 grid layout matches the standard SBS microplate footprint, so robotic tube handlers and 96-channel pipetting workstations that address microplate coordinates can work directly with these racks without custom programming — confirm your instrument's deck adapter requirements before use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs a lid available to protect samples during storage?\u003c\/strong\u003e\u003cbr\u003eYes — the compatible 300-6388 PPC Natural rack lid is sold separately in a 5\/Pack format. 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