EZBio® Viper Filling Needles: Precision Engineering for Aseptic Fill-Finish Operations
In aseptic fill-finish operations, precision and consistency determine product quality, yield, and safety. Every droplet matter, and every transfer must be controlled, traceable, and contamination-free.
To meet the growing need for accuracy and sterility in pharmaceutical and bioprocessing environments, Foxx Life Sciences introduces the EZBio® Viper Filling Needles engineered for unmatched reliability, precision, and compatibility across leading filling systems.
These high-performance filling needles have been developed to address one of the most critical steps in drug manufacturing and formulation: the final fill. Designed and manufactured to deliver consistent liquid dosing, they combine durable materials, precise geometry, and excellent chemical compatibility to support both R&D and large-scale production environments.

The EZBio® Viper Filling Needle is a precision-engineered dispensing component designed for use in bioprocess and pharmaceutical fill-finish operations. Each needle is constructed using a 316L stainless steel cannula securely bonded to a USP Class VI polycarbonate hub, creating a robust and biocompatible assembly ideal for aseptic processing.
The cannula undergoes electropolishing and passivation, producing a smooth, corrosion-resistant internal surface that enhances fluid flow and prevents particle retention. This ensures not only accuracy in dosing but also superior cleanliness and durability during repeated use in controlled environments.
EZBio® Viper Filling Needles are fully compatible with leading filling machines, including those from Pall, and are available in a wide range of inner diameters (0.8 mm to 4.8 mm). Custom lengths, IDs, and hub configurations can be tailored to specific equipment or process requirements.
Built for Accuracy and Performance
Each EZBio® Viper Needle is designed to deliver both strength and precision during liquid filling applications. From sterile formulations to biologics, the needle’s construction supports consistent dosing and minimizes risk during critical process steps.
Key Features and Benefits:
High-quality precision dispensing
Specifically designed for bioprocess and pharmaceutical fluid dispensing applications.
316L stainless steel cannula
Offers superior targeting accuracy and corrosion resistance compared to PEEK or other polymer-based options.
Hose-barb hub design
Provides a secure, leak-free connection to the filling system for dependable operation during high-throughput applications.
Compatible with Pall filling systems
Ensures seamless integration into widely used fill-finish platforms.
Electropolished surface
Creates a clean, smooth internal pathway that reduces contamination risk and enhances sterility.
UV-bonded hub assembly
The cannula is securely bonded to the hub using medical-grade UV-curing adhesive, providing exceptional mechanical strength and long-term stability under repeated sterilization cycles.
Applications Across Bioprocessing and Pharma
The EZBio® Viper Filling Needle supports a range of aseptic filling and fluid dispensing applications within bioprocessing, pharmaceutical production, and research environments.
Typical applications include:
Final fill for drug products such as vaccines, biologics, and therapeutic formulations
Cell and gene therapy manufacturing where sterility and dose control are critical
Formulation and compounding of sterile liquids for preclinical and production use
Benchtop filling applications for small-scale studies, testing, or pilot production runs
Whether used in small-batch clinical research or commercial biomanufacturing, the EZBio® Viper delivers precise, reproducible performance that meets the expectations of regulated industries.

The EZBio® Viper Filling Needle is built to meet the demanding precision, sterility, and adaptability standards of modern fill-finish operations. Its electropolished stainless-steel design, customizable configuration, and compatibility with industry-standard equipment make it a dependable choice for regulated bioprocess and pharmaceutical production environments.
With Foxx Life Sciences’ continued commitment to innovation and process efficiency, the EZBio® Viper Filling Needle brings a new level of accuracy and reliability to critical fluid dispensing operations.
To explore technical specifications, available configurations, and customization options for the EZBio® Viper Filling Needle, Explore: EZBio® Viper Filling Needles – SS 316L, PC Hub, Non-Sterile Range – Foxx Life Sciences
Watch the complete application video: