How It Works

Insert one vent needle through the cartridge septum before you start filling. As your syringe pushes solution into the cartridge, the displaced air escapes through the vent instead of building up pressure. No blowouts. No foaming. No wasted peptide. When you’re done filling, pull the needle out first, then the vent needle. The septum reseals on both punctures.

Product Details

• 6x sterile, single-use vent needles
• 31G ultra-fine cannula x 13mm length
• Luer lock connection, fits any standard luer lock syringe
• Individually wrapped, EO-sterilized

Stop Losing Product to Stopper Blowout

If you’ve ever filled a 3mL pen cartridge and watched the rubber stopper shoot out the bottom, you already know why you need these. Without a way to release trapped air, pressure builds inside the cartridge as you push peptide in, until the stopper gives way. That means lost product, broken glass, and a mess you didn’t sign up for.

Universal Compatibility

Works with standard 3mL pen cartridges used in V1, V2, V3, and other reusable peptide pens.

Important Use Disclaimer

For Research Use Only

Not for human or animal therapeutic, clinical, or diagnostic use. Not FDA-approved. Buyer assumes all responsibility for proper handling, storage, and lawful use.
Cartridge not included