Eppendorf Res.3 piston spring 2.5-20µL gray/yellow 3102636003

This is an OEM replacement piston spring for Eppendorf single‑channel pipettes (Research® plus, Reference® 2 and Xplorer®). It is specified for use with 2.5 µL, 10 µL and 20 µL pistons and is color‑coded gray or yellow to match those piston sizes. The part is used during routine maintenance or repair to restore correct piston return and reliable microliter dispensing performance in laboratory liquid‑handling workflows.

Key Features:

• Manufacturer part number: 3120609008 (Eppendorf replacement piston spring)
• Compatible models: Eppendorf Research® plus, Reference® 2 and Xplorer® pipettes
• Intended piston sizes: 2.5 µL, 10 µL and 20 µL pistons
• Color code: gray or yellow (matches corresponding piston volumes)
• Single‑channel replacement piston spring (for single‑channel pipettes)

Advantages:

• Restores correct piston return mechanics to preserve pipette accuracy and repeatability
• OEM spare part ensures direct compatibility and simplifies maintenance or field repair
• Color coding (gray/yellow) makes it easy to select the correct spring for a given piston volume
• Small, inexpensive part that reduces downtime by enabling quick replacement during routine service