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Sample Needle for KN21

Sample Needle for KN21- The compatible replacement (P/N 441-1634-7, fits KX-21 / KX-21N / XP-100 / XP-300) is machined to OEM geometry and tolerances: identical outer diameter, taper, bore, and tip angle for zero-drift aspiration volume and timing.

Corrosion Resistance & Surface Integrity
The needle body is fabricated from medical-grade 316L stainless steel, with an internal bore that is both mirror-polished and treated for chemical inertness. It withstands long-term exposure to aggressive reagents — hemolytic agents, diluents, and the like — without wall adhesion or deformation.

Contamination & Clogging Control
The inert, smooth bore markedly lowers the risk of needle clogging and cross-contamination.

Edge Quality & Service Life
A high-precision cutting edge ensures smooth, burr-free, barb-free aspiration, while the continuous-operation service life matches that of the OEM original.

Precision & Cost-Efficiency
Backed by OEM-grade dimensional consistency, this compatible needle safeguards both volumetric repeatability and assay stability needle after needle — an ideal alternative that balances durability, precision, and cost.

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