Eppendorf Res.3 piston spring 2mL red 3102636000

This is an Eppendorf OEM replacement piston spring (red) intended for the piston/piston-seal assembly used in Eppendorf Research/Reference series pipettes. It supplies the spring force for the piston/tip-cone mechanism and is specified for pipettes in the milliliter range (used with ~0.25–2.5 mL pistons, including fixed 2 mL variants). Primary use cases are routine maintenance, repair or part replacement to restore piston return, tip fit and reliable liquid handling on compatible single‑channel pipettes.

Key Features:

• Product type: Replacement piston spring (OEM for Eppendorf Research/Reference pipettes).
• Colour: Red (Eppendorf colour code for the ~0.25–2.5 mL piston range).
• Volume range compatibility: approximately 250–2500 µL (used with 2 mL/fixed 2 mL pistons on relevant models).
• Intended location: piston / piston‑seal assembly (single‑channel lower part).

Advantages:

• Restores correct piston return and tip fit after wear, helping maintain pipetting performance (logical maintenance use for an OEM piston spring).
• Color coding (red) matches Eppendorf volume-range system so technicians can select the correct spring for 2 mL pistons.
• Small, inexpensive OEM spare that enables on‑site replacement and extends service life of Research/Reference pipettes.