A 31 gauge needle at 12mm is a slightly unusual combination: fine bore, long shaft. Mesbio makes it for the U225 mesogun so that operators who want depth are not obliged to accept a thicker needle in order to get there.
The ultra thin wall build is what makes that pairing workable. Wall thickness is reduced so the lumen stays open at a gauge where flow would otherwise be the limiting factor, and on a device metering out large numbers of small doses, consistency of flow is the whole point.
Practical notes for ordering
- 31G bore with a 12mm working length
- Ultra thin wall tubing, U225-compatible fitting
- Single-use consumable, supplied sealed
Browse the full needles category to compare gauges side by side, or step down to the MESBIO NEEDLES 32Gx4 FOR U225 MESOGUN when the same list of appointments includes shallow, fine work. Wholesale supply to practitioners worldwide.




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