Microcentrifuge Tube Racks, 96-Well, Non-Sterile, PP, Orange — 240-6388-E30 | 5/Pack | Caplugs® Evergreen

96-Position Microcentrifuge Tube Rack — PP, Orange, 1.5 mL & 2.0 mL Compatible (240-6388-E30)

The Caplugs® Evergreen 240-6388-E30 is a 96-position polypropylene microcentrifuge tube rack molded in orange, supplied 5 per pack for organized management of standard 1.5 mL and 2.0 mL microcentrifuge tubes. Its 8 × 12 grid layout matches the SBS microplate footprint at 9 mm center-to-center well spacing, enabling direct integration with automated liquid-handling platforms and 96-channel pipetting workstations that address tubes in plate-coordinate format. Supplied non-sterile and autoclavable at 121 °C, these racks are built for repeated decontamination cycles without dimensional distortion or color loss.

Technical Specifications

Applications

• PCR setup staging: organize pre- and post-amplification tubes in a standard 96-well plate footprint to streamline pipetting workflows
• Sample archiving and storage: hold labeled 1.5 mL or 2.0 mL tubes in a consistent positional format for biobanking and specimen management
• Centrifuge loading preparation: batch-load microcentrifuge tubes efficiently before spinning to minimize handling time
• BSL-2 and high-risk sample workflows: orange color convention provides immediate visual identification of biohazard or priority-alert sample sets in mixed-priority environments
• Automated liquid handling: SBS-format grid allows 96-channel pipetting workstations to address tubes directly in plate-coordinate format
• BSC and clean-bench organization: UV decontamination compatibility supports biosafety cabinet use between experiments

Chemical Resistance

Quality & Procurement

Made in USA, these racks are manufactured by Caplugs® Evergreen from virgin, BPA-free, phthalate-free polypropylene under ISO 9001 quality management. The orange pigment is compounded directly into the PP matrix — not applied as a surface coating — ensuring permanent color stability through autoclave cycles, alcohol wipe-downs, and UV decontamination without fading or pigment migration. The 240-6388 family spans seven colors (Natural, Blue, Orange, Green, Lavender, Red, and Yellow), enabling complete color-scheme procurement from a single vendor for multi-user and multi-project lab organization. LabSupplies.com is an authorized dealer and ships from USA inventory.

Frequently Asked Questions

Can these racks be autoclaved between experiments?
Yes. The polypropylene construction is fully compatible with standard steam autoclaving at 121 °C / 15 psi, making them suitable for repeated decontamination cycles without warping or color degradation.

Do these racks fit both 1.5 mL and 2.0 mL microcentrifuge tubes?
Yes. The 9 mm center-to-center well spacing accommodates standard microcentrifuge tubes with an 11 mm OD, which covers both the 1.5 mL and 2.0 mL format used by Eppendorf® and most compatible tube brands.

Is a lid available to cover loaded racks during storage or incubation?
Yes. The 300-6388 PPC Natural lid is sold separately in a 5/Pack and is designed specifically to fit this rack, providing dust protection and allowing stacking of loaded racks.

Why choose orange instead of a neutral color?
Orange is a widely recognized visual alert color in clinical and research settings. It is commonly used to flag biohazard samples, BSL-2 culture work, or any tube set requiring priority attention in a mixed-workflow environment — making it easy for staff to distinguish high-risk or high-priority samples at a glance without additional labeling.