Syringe Filters – Filtration Solutions for Laboratory & OEM Applications

Laboratory-grade syringe filters designed for analytical laboratories, research institutions, and bulk procurement.

Hawach syringe filters are single-use membrane filtration devices used for sample preparation, particle removal, sterilization, and instrument protection (HPLC/GC/UHPLC). With full membrane portfolio and consistent batch quality, they are suitable for routine laboratory workflows, regulated environments, and OEM integration.

Designed for distributors, laboratory procurement teams, and OEM partners requiring consistent quality and reliable supply.

Full membrane range: PES, PTFE, PVDF, Nylon, MCE, CA, RC, Glass Fiber, PP
Available in sterile (gamma irradiated) and non-sterile formats
Multiple diameters (13 mm, 25 mm, 33 mm) and pore sizes (0.22 µm / 0.45 µm)
OEM customization: housing, packaging, labeling
Stable supply for bulk and long-term procurement

Sterile syringe filters – Gamma irradiated, individually blister-wrapped or multi-pack, suitable for aseptic applications.

Syringe Filter Selection by Application

For HPLC / UHPLC sample preparation:
PTFE and Nylon for organic solvents; PES and PVDF for aqueous or mixed samples

For biological and protein samples:
PES, PVDF, and Regenerated Cellulose (RC) for low protein binding and high recovery

For microbiological analysis:
MCE membrane filters for colony counting and contamination testing

For viscous or particulate-heavy samples:
Glass Fiber for prefiltration; PP filters for structural support and coarse filtration

Quick Tip – Pore Size Selection

Pore Size	Best For
0.22 µm	Sterile filtration, removal of bacteria, fine particle removal
0.45 µm	Routine sample clarification, HPLC/GC sample preparation

Use 0.22 µm when sterility or sub-micron particle removal is required; use 0.45 µm for general analytical filtration.

Membrane Selection Guide for Procurement

Membrane	Recommended Use	Key Advantage
PES	Biological & aqueous samples	Low protein binding, high flow rate
PTFE	Organic solvents, aggressive chemicals	Excellent chemical resistance
PVDF	Protein samples & mixed solvents	Balanced performance
Nylon	General analytical applications	Wide chemical compatibility
RC	Sensitive biological samples	Ultra-low adsorption
MCE	Microbiological testing	Suitable for colony analysis
CA	Routine aqueous filtration	Low adsorption
Glass Fiber	Prefiltration	High particle loading capacity
Activated Carbon	Purification & decolorization	Adsorbs organic contaminants

Syringe Filter Types by Membrane Material

Hydrophilic Membranes (Aqueous Applications)

PES Syringe Filters
for biological samples and laboratory filtration workflows
Cellulose Acetate Syringe Filters
for general aqueous filtration
Regenerated Cellulose Syringe Filters
for sensitive and low adsorption applications
MCE Syringe Filters
for microbiological analysis and testing
Hydrophilic PVDF Syringe Filters
for protein samples with moderate solvent exposure
Hydrophilic PTFE Syringe Filters
for aqueous-organic mixed solutions

Hydrophobic Membranes (Organic Solvents & Gas)

Hydrophobic PTFE Syringe Filters
for strong organic solvents and HPLC sample preparation
Hydrophobic PVDF Syringe Filters
for protein filtration with solvent compatibility

General Purpose Membranes

Nylon Syringe Filters
for versatile laboratory and analytical applications

Prefiltration & Functional Filters

Glass Fiber Syringe Filters
for high particulate and viscous samples
PP Syringe Filters
for coarse filtration and structural support
Activated Carbon Syringe Filters
for adsorption and purification applications

How Syringe Filters Work

A syringe filter connects to a standard luer-lock syringe. The sample is pushed through the membrane under manual pressure, where particles, microorganisms, or contaminants are retained, allowing only the clarified filtrate to pass through.

This simple and efficient method replaces traditional vacuum filtration in many laboratory workflows, reducing contamination risk and improving operational efficiency.

Key Selection Parameters

Membrane material– determines chemical compatibility and adsorption behavior
Pore size– 0.22 µm for sterile filtration; 0.45 µm for general clarification
Diameter– 13 mm (small volume), 25 mm / 33 mm (higher throughput)
Protein binding– critical for biological and analytical recovery
Flow rate– influenced by membrane structure and filter area
Housing material– medical-grade polypropylene (PP) with luer-lock inlet / luer-slip outlet options

Typical Applications

HPLC / UHPLC sample preparation
GC sample filtration
Protein and biological sample processing
Microbiological testing
Environmental water analysis
Pharmaceutical sample clarification

Request Technical Recommendation or Bulk Quote

For bulk purchasing, OEM projects, or application-specific selection, our technical team can recommend the optimal syringe filter configuration based on your requirements.