Eppendorf Combitips Plus 25 ml - Total of 100 Tips

Eppendorf 2226655-1 Combitips Plus 25 ml with Reusable Adapter (Non-Sterile)

The Eppendorf 2226655-1 is a high-capacity 25 ml positive-displacement tip designed for the Eppendorf Repeater (Multipette) series. Unlike standard air-displacement pipettes, the Combitips Plus system utilizes an integrated piston to displace liquid directly, making it the ideal solution for accurately dispensing "difficult" liquids, including viscous, high-density, or volatile fluids. This specific 25 ml model is engineered for high-volume serial dispensing tasks, allowing for up to 100 consecutive dispensings without refilling. Each pack includes the necessary reusable adapter required to interface the high-volume tip with the Repeater’s mounting sensor.

Technical Performance and Design

• Positive Displacement Principle: The internal piston makes direct contact with the liquid, ensuring that even "foaming" liquids or fluids with high vapor pressure (like ethanol) are dispensed with 100% accuracy without an air cushion.

• Hermetically Sealed Piston: The tight-fitting piston wipes the inner walls of the tip clean during dispensing, ensuring maximum sample recovery and preventing the formation of aerosols.

• Automatic Tip Recognition: When used with the Repeater Plus, M4, or Pro models, the integrated sensor allows the instrument to automatically recognize the 25 ml tip size and display the correct volume on the digital screen.

• High-Volume Efficiency: Optimized for the rapid distribution of culture media, buffers, and reagents into multiple aliquots, significantly reducing repetitive motion and manual pipetting time.

Product Specifications

• Catalog Number: 2226655-1 (Legacy Part Number)

• Volume Capacity: 25 ml

• Tip Series: Combitips Plus

• Material: Polypropylene (Tip) / Polyethylene (Piston)

• Sterility: Non-Sterile (Standard Quality)

• Compatibility: Eppendorf Repeater (Multipette) 4780, Repeater Plus, Repeater M4, and Repeater Pro.

• Included Accessories: 1 Reusable Adapter (Required for 25 ml operation).

Key Benefits & Applications

• Viscous Fluid Handling: Perfect for dispensing glycerol, oils, and thick detergents that typically stick to the sides of standard pipette tips.

• Volatile Solvent Dispensing: Prevents the "dripping" associated with air-displacement pipettes when handling acetone, hexane, or alcohols.

• Legacy System Support: A critical consumable for labs maintaining the legacy Eppendorf Repeater 4780 or Repeater Plus instruments where the "Plus" series tips are specifically required.

• Contamination Prevention: The integrated piston prevents hazardous or radioactive liquids from entering the internal mechanism of the pipette, acting as a built-in safety barrier.

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