Product Description
FilterMAX™ Syringe Filters, Glass Filter, 25mm, 1.0um, case of 1000
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All FilterMAX™ products are made according to the strictest manufacturing and quality standards, in order to guarantee the highest level of consistency for your lab!
The Maxi Scientific MAXI-S25GF100A is a 25 mm Glass Fiber (GF) syringe filter with a 1.0 µm pore size — engineered for aqueous sample filtration, chromatography sample prep, and general particulate removal. It is a direct drop-in replacement for the Waters Acrodisc WAT200818, delivering identical performance at a fraction of the cost.
Sold in cases of 1,000 filters (10 packs of 100), the MAXI-S25GF100A is built for high-throughput labs that need reliable, consistent filtration without breaking the budget. Glass fiber membranes excel at filtering particle-laden aqueous solutions and are widely used as prefilters ahead of membrane syringe filters to extend membrane service life.
Features & Benefits
- Direct replacement for Waters Acrodisc WAT200818 — same 25 mm diameter, same 1.0 µm pore size, same polypropylene housing. Switch without changing your workflow.
- Autoclavable — supports sterile technique and reuse-compatible workflows.
- PFAS-free — no per- and polyfluoroalkyl substances, keeping your samples and your lab compliant.
- Cyanide-free — safe for sensitive downstream applications and mass spectrometry workflows.
- No color additives — the housing contains zero color additives, so nothing leaches into your sample. What goes in comes out pure.
- Female Luer Lock inlet — universal compatibility with virtually any syringe on the market. No adapters, no frustration.
- Low dissolution & ultra-low retention membrane — engineered for HPLC sample prep and biological filtration where sample loss and contamination simply aren't an option.
- Injection-molded housing (not ultrasonic welded) — injection molding produces a stronger, more consistent seal. Ultrasonic welded filters can burst apart under pressure, sending hazardous sample material everywhere. This one won't.
Specifications
| Part Number | MAXI-S25GF100A |
| Filter Media | Glass Fiber (GF) |
| Diameter | 25 mm |
| Pore Size | 1.0 µm |
| Housing Material | Polypropylene (PP) |
| Color Additives | None |
| Filtration Area | 2.98 cm² |
| Hold-Up Volume | < 100 µL |
| Max Sample Volume | < 100 mL |
| Inlet Connection | Female Luer Lock |
| Outlet Connection | Male Luer Slip |
| Max Operating Pressure | 6 bar @ 23°C |
| Sealing Technology | Injection Molded |
| Sterility | Non-sterile |
| Autoclavable | Yes |
| PFAS-Free | Yes |
| Cyanide-Free | Yes |
| Case Quantity | 1,000 (10 packs of 100) |
| Replaces | Waters Acrodisc WAT200818 |
Common Applications
- HPLC and UHPLC sample preparation
- Aqueous sample clarification and particulate removal
- Prefiltration ahead of membrane syringe filters
- Environmental sample prep (water, soil extracts)
- Food and beverage testing
- Biological and life science filtration
- General laboratory filtration workflows
Frequently Asked Questions
Is the S25GF100A a direct replacement for the Waters WAT200818?
Yes. The MAXI-S25GF100A matches the WAT200818 in membrane type (glass fiber), diameter (25mm), pore size (1.0µm), housing material (polypropylene), and connection type (Luer Lock / Luer Slip). It is a drop-in substitute with no workflow changes required.
What is the difference between glass fiber and PTFE or nylon syringe filters?
Glass fiber filters are best suited for aqueous samples with high particulate loads. They offer excellent flow rates and dirt-holding capacity, making them ideal for use as prefilters. PTFE is preferred for aggressive solvents, and nylon works well across a broad range of aqueous and mild solvent applications.
Can this filter be used as a prefilter?
Yes. The 1.0µm pore size makes the MAXI-S25GF100A an excellent prefilter when used in series ahead of a 0.2 or 0.45µm membrane filter, significantly extending membrane life when filtering dirty or viscous samples.
What syringe sizes are compatible?
The female Luer Lock inlet is compatible with virtually all standard syringes. For best results, use with syringes between 5mL and 60mL for aqueous samples up to 100mL.
