Syringe Filter PTFE Membrane 25mm 0.45um Pack of 100 - Lab Grade

In this review the focus is on a practical, lab-focused product: the Syringe Filter PTFE Membrane 25mm 0.45um, sold as a non sterile pack of 100. The bottom line is that this set of hydrophobic PTFE syringe filters is best for users who need broad chemical compatibility and consistent single-use filtration for organic solvents or aggressive acids and bases. Our review finds the filters deliver reliable material compatibility and strong build consistency, making them a sensible choice for routine analytical and prep work where sterility is not required.

Key Features

• Hydrophobic PTFE membrane: Allows filtration of organic solvents and chemically aggressive solutions without membrane degradation.
• 0.45um pore size: Provides common laboratory-level filtration for particulates while maintaining usable flow for many solvent systems.
• 25mm diameter: Fits standard syringe setups and small filtration assemblies for quick, single-use processing.
• Polypropylene housing: Inert PP body with luer connections offers a secure, chemically resistant housing that is easy to handle.
• Pack of 100: Large quantity reduces frequent reordering and supports repeated workflows or multi-user labs.
• Good lot-to-lot consistency: Users can expect reproducible performance across units and packs, which helps method repeatability.

Who It's For

This product is aimed at labs and technicians who filter organic solvents, strong acids, or alkali solutions where a hydrophobic PTFE membrane is required. It is practical for analytical chemistry, sample prep, and routine filtration tasks that do not demand sterility but do demand chemical resistance and predictable unit-to-unit behavior.

Those who need sterile filtration for microbiological work or absolute ultrafiltration at smaller pore sizes should look elsewhere; this non sterile 0.45um filter is not intended to replace sterile membrane filters or filters with different pore ratings required by regulatory workflows.

Pros & Cons

Pros

• Excellent chemical compatibility from PTFE makes these filters suitable for aggressive solvents and corrosive samples.
• Consistent build quality and unit-to-unit reproducibility reduce variability in routine workflows.
• Durable polypropylene housing and secure luer fittings simplify handling and single-use operation.
• Bulk pack of 100 provides value for labs that consume filters regularly.

Cons

• Non sterile product means additional sterilization steps are necessary for microbiology or aseptic work.
• Some users report mixed results on flow rate and functionality depending on sample viscosity and particulate load.

Specifications

Membrane material	PTFE (hydrophobic)
Pore size	0.45um
Diameter	25mm
Housing material	Polypropylene (PP)
Connectors	Inlet: female luer, Outlet: male slip luer
Pack quantity	100 per pack
Applicable pH range	1 - 14

Our Verdict

The Syringe Filter PTFE 25mm 0.45um pack of 100 is a solid, cost-effective option for chemists and lab technicians who need reliable chemical resistance and consistent performance for non sterile filtration. It is good value for routine solvent and corrosive solution work, though it is not intended for sterile applications or situations demanding finer porosity control.

Frequently Asked Questions

Can these filters be used with organic solvents?
Yes, the hydrophobic PTFE membrane and polypropylene housing provide broad chemical compatibility for most organic solvents.

Are these filters sterile out of the pack?
No, this is a non sterile product; users requiring sterility should sterilize before use or choose a sterile-rated filter.

What syringe connections do they fit?
The filters have a female luer inlet and a male slip luer outlet to fit standard luer-compatible syringes and devices.