Eppendorf Res.3 piston spring 200µL yellow 3102636005

This is an OEM replacement piston spring for Eppendorf single‑channel pipettes (Research® plus / Reference® 2) intended for the 20–200 µL range and the fixed 200 µL models. The spring restores the piston return/load function inside the piston assembly so the pipette dispenses and returns smoothly; it is used during maintenance or repair of the pipette lower/channel assembly. The part is color‑coded yellow to match the 200 µL piston/seal series and is sold as a single spare component by Eppendorf.

Key Features:

• Manufacturer: Eppendorf (OEM spare part)
• Manufacturer part number (documented): 3120611002 — piston spring, color code yellow
• Compatible volume range: variable 20–200 µL and fixed 200 µL
• Intended models: Eppendorf Research® plus and Reference® 2 single‑channel pipettes
• Packaging/format: single replacement piston spring (single‑channel spare)

Advantages:

• Restores correct piston return tension and smooth operation after wear or damage, helping maintain dispensing accuracy
• OEM part ensures proper fit and compatibility with Eppendorf Research® plus / Reference® 2 piston assemblies
• Color coding (yellow) matches the 200 µL piston series for easy identification during maintenance
• Allows economical repair of a pipette channel without replacing the entire pipette