- CE-marked & ISO 13485
- Same-day dispatch before 14:00 CET
- Tracked worldwide · PostNord · DHL
- Discreet packaging · plain unbranded box
Pen Cartridges 3ml (empty) — product description
Empty 3ml glass cartridges for reusable pens. Fill with your own solution.
Empty sterile 3ml glass cartridges with crimp cap and plunger, compatible with the V3 Pen and standard 3ml-cartridge pens. Fill using a Luer Lock syringe with draw and vent needles.
What makes this product different
- Only complete EU ecosystem. Premium research accessories stocked in Stockholm for same-day dispatch.
- Stocked in Sweden. Same-day dispatch before 14:00 CET. No customs delays, no imports from Asia.
- Medical-grade quality. Manufactured according to ISO 13485 standards for optimal fluid flow and minimal friction.
- Discreet packaging. Ships in plain unbranded protective packaging ensuring 100% research privacy.
Compatibility & Specification
Designed for seamless compatibility across standard laboratory protocols, luer lock fittings, and peptide research setups.
Precision Dosing
Engineered for high accuracy and reliable fluid handling in every workflow.
Stocked in EU
Fast dispatch from Stockholm with full tracked delivery across Europe.
Sterile & Certified
Individually sealed and blister-packed to ensure maximum laboratory safety.
Frequently Asked Questions
Q: Do you offer international shipping?
A: Yes, we offer tracked shipping worldwide via DHL and PostNord.
Q: Are these products sterile?
A: Yes, all syringes are individually blister-wrapped and sterile.
Pre-made researcher kits — save more
Ready-made bundles with these 31G PRO syringes plus the supplies you need for a complete workflow. Better value than buying separately.
You may also need
2-litre white sharps container with secure rotating lid.
3ml Luer Lock syringe for drawing from vials. Needle sold separately.
Learn more — guides and tutorials
Watch: how to read a syringe (1:24)
Animated handling demonstration covering graduations, dead space, plunger glide, and proper aspiration technique. Part of our research handling tutorial library.
Duration 1:24 · Animated tutorial
Research guides and references
Companion content covering reconstitution technique, injection workflow, sharps disposal, and peptide-specific reference data.
12 video tutorials
Animated demonstrations: reading a syringe, drawing from a vial, reconstitution, sharps disposal, and more.
Reconstituting peptides
Pillar guide: BAC water ratios, mixing technique, storage post-reconstitution. Step-by-step for first-time researchers.
BAC water calculator
Interactive tool: calculate exact reconstitution volume for any peptide concentration and target dose.
30G vs 31G — which to use?
Comparison: gauge differences, dead space, patent rate, and peptide workflow trade-offs across both options.
Reconstitution calculator
Calculate doses, BAC water volumes, and prep workflows.
Sharps disposal — UN3291
EU disposal regulations, container options, and pickup services for research labs.
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