96-Position Microcentrifuge Tube Rack — PP, Natural, 1.5 mL & 2.0 mL Compatible (240-6388-030), 5/Pack
The 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.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-6388-030 |
| Configuration | 96 positions, 8 × 12 grid |
| Well Spacing | 9 mm center-to-center (SBS microplate footprint) |
| Tube Capacity | 1.5 mL and 2.0 mL microcentrifuge tubes (11 mm OD) |
| Material | Polypropylene (PP) |
| Color | Natural (translucent) |
| Compatible Lid | 300-6388 PPC Natural lid (sold separately, 5/Pack) |
| Sterility | Non-Sterile |
| Pack Size | 5/Pack |
| Autoclave Compatibility | 121°C / 15 psi |
| UV Decontamination | Compatible (standard 254 nm cycle) |
| BPA / Phthalates | BPA-free; phthalate-free |
| Country of Origin | USA (California) |
Applications
- PCR setup and reaction staging — the 8 × 12 SBS-footprint grid lets 96-channel pipettors address tubes in standard plate coordinates without reprogramming
- Sample storage and inventory management for 1.5 mL and 2.0 mL microcentrifuge tubes across clinical, genomics, and biobank workflows
- Centrifuge staging and post-spin sample organization in high-throughput processing pipelines
- UV decontamination cycles in biological safety cabinets and clean-bench environments between experiments
- Dedicated rack-per-experiment protocols that eliminate cross-contamination risk from reused labware
Compatibility
The 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.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids and bases | Excellent |
| Ethanol and isopropanol (<70%) | Good — suitable for standard disinfection protocols |
| Ethanol and isopropanol (>70%) | Short-term contact only — prolonged exposure not recommended |
| Acetone / chloroform / aromatic solvents | Not recommended |
| Autoclave (121°C / 15 psi steam) | Compatible |
| UV decontamination (254 nm) | Compatible |
Quality & Procurement
Made 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.
Frequently Asked Questions
Can these racks be autoclaved between experiments?
Yes — 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.
Do these racks fit 2.0 mL tubes as well as 1.5 mL tubes?
Yes — 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.
Will these racks work with my automated liquid-handling platform?
The 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.
Is a lid available to protect samples during storage?
Yes — the compatible 300-6388 PPC Natural rack lid is sold separately in a 5/Pack format. It provides dust protection for stored samples and enables stable stacking of fully loaded racks.