Pen Needles 31G — 50 Count

Description

Universal 31G pen needles. They twist onto the AminoPen Pro, the Go, and any other standard pen. Fifty per box, individually sealed.

If you’re new to tips: 8mm is the common general-purpose length. Shorter tips (4–6mm) work too and may need a touch longer engagement for complete fluid transfer.

Specs

• Gauge: 31G
• Thread: universal
• Quantity: 50, individually sealed

Shipping note: state regulations prevent us from shipping needles to CT, DE, IL, ME, NH, NJ, NY, PA, and TN. Everything else we sell ships to all 50 states. Details on our Needle Shipping Policy page.

For research and laboratory use only.