Description
0.22µm Sterile PES Syringe Filter, 4mm Diameter | High-Flow Lab Filtration
Our 0.22µm PES (Polyethersulfone) Syringe Filter is engineered for high-performance microfiltration of aqueous solutions and biological fluids. At a 4mm diameter, these filters are specifically designed for small-volume samples (typically <2ml), ensuring minimal hold-up volume and maximum sample recovery in precision laboratory environments.
The hydrophilic PES membrane is chosen for its low protein binding characteristics and exceptional flow rates, making it the industry standard for sterilizing tissue culture media, additives, and buffers. Each filter is individually sterile-packaged and certified pyrogen-free. Unlike 0.45µm filters, the 0.22 micron pore size is the biological standard for achieving complete sterilization by removing bacteria and fine particulates from your research compounds.
Product Features & Specs:
Membrane Material: Polyethersulfone (PES)
Filter Diameter: 4mm (Optimized for <2ml samples)
Housing: Medical Grade Polypropylene
Sterility: Sterile, Individually Wrapped
Compatibility: Aqueous solutions, pH 1-14
Pore Size: 0.22µm (Micron) for complete sterilization.
Membrane: Hydrophilic PES (Low Protein Binding).
Small Volume Optimized: 4mm housing for maximum sample recovery.
Sterility: Individually blister-packed and ETO sterilized.
Quantity: Professional pack of 10.
⚠️ DISCLAIMER: For laboratory research use only. Not for medical or human use.
Research Applications
These sterile PES syringe filters are ideal for researchers working with peptides, proteins, and tissue culture media. Whether you are preparing samples for HPLC or sterilizing buffers, the 4mm PES filter provides the chemical compatibility and reliability required for high-stakes laboratory environments.
Fast USA Shipping
We provide rapid, secure shipping from our local hubs. Whether you are ordering from Ohio, Wyoming, or anywhere in the USA, your lab supplies are packaged with care to ensure they arrive sterile and ready for immediate use.
FAQs
What is a 0.22um syringe filter used for?
A 0.22um syringe filter is used in laboratory research for fine filtration of small-volume samples to remove particles and contaminants.
What material is this syringe filter made of?
This filter is made of polyethersulfone (PES), known for its low protein binding and high flow rate.
Are these syringe filters sterile?
Yes, each 0.22um syringe filter 4mm unit is individually sterilized and packaged.
What size samples can this 4mm filter handle?
The 4mm syringe filter is suitable for small-volume laboratory filtration applications.
Do you ship syringe filters in the USA?
Yes, we provide fast shipping across the United States, including Ohio.
What does a 0.22 um filter remove? A 0.22µm filter is the biological standard for sterilization. It removes 100% of bacteria, fungi, and large particulates, ensuring your research solution is free from microbial contamination.
What is the difference between a 0.22 UM and 0.45 UM filter? The 0.22µm filter is used for sterilization (removing bacteria), whereas the 0.45µm filter is typically used for clarification (removing larger debris/sediment). For sensitive peptide research, 0.22µm is the preferred choice.
How do I use a 4mm syringe filter? Secure the filter to a luer-lock syringe containing your sample. Gently apply pressure to pass the liquid through the PES membrane. The 4mm size is specifically designed to handle small volumes with almost zero liquid left behind inside the filter.
Where can I buy sterile syringe filters in the USA? We offer high-quality, HPLC-certified sterile filters with fast shipping across the United States, including local pickup options in Northwest Ohio.
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