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Designed for precision, purity, and performance, these Pre-Purged 3mL Long Stopper Research Pen Cartridges offer additional easy and convenience in compound loading.
During the mechanical assembly process the stopper is pushed to the top of the cartridge removing most of the air allowing cartridge to be loaded without venting.
Each cartridge is engineered to deliver smooth, consistent dosing and is fully compatible with most reusable peptide, research, and insulin-style pen systems.
Cartridges are mechanically assembled in a sterile environment with individually steam sterilized components then after individual packaging in special Tyvek Sterilization Pouches they are Steam Sterilized again. What sets our cartridges apart is their validated steam-sterilization process—ensuring each unit arrives sterile and ready for immediate research use. Every pouch includes an authentic steam-sterilization indicator, which turns from blue to shades of black upon autoclave exposure, providing visual confirmation of sterility.
Key Features
Why Choose Steam-Sterilized Cartridges?
Steam sterilization remains the most reliable and widely accepted sterilization method for precision consumables, ensuring the elimination of microbial contaminants without chemical residue. The dark indicator marking provides assurance that each cartridge has undergone a full sterilization cycle—offering confidence in every use.
Research Use Only (RUO)
These cartridges are intended for laboratory and research use only. Not for medical, diagnostic, or therapeutic applications in humans or animals. Limited to 30 pieces per order to ensure availability for all customers.
Free Ground Shipping Credit for all orders over $150.00 - select standard shipping during checkout
Check out the FAQs page for lots of information.