Polypropylene Capsule Filter, 0.22 um, 72mm x 115mm, 1/4 in. MNPT, Nonsterile, 1/Pk SKU: SF14996

Polypropylene (PP) Capsule Filters - SF14996

When filtration applications demand resistance to the broadest range of industrial chemicals, polypropylene capsule filters deliver reliable clarification and prefiltration performance. Optimized for laboratory use, all-polypropylene construction from membrane to housing provides uniform chemical resistance, eliminating the compatibility concerns that arise when membrane and housing materials respond differently to aggressive process fluids. Ultimately, the outcome is a validated filtration barrier that arrives ready for process integration, supporting the single-use manufacturing strategies adopted by modern pharmaceutical and biotechnology facilities.

Key Polypropylene (PP) Membrane Characteristics

Polypropylene capsule filters withstand aggressive chemical environments across the full pH range, from concentrated acids to strong bases, without membrane degradation or extractable release.
The non-sterile format provides the same membrane retention and flow performance as sterile variants, with the flexibility for user-controlled sterilization when process requirements dictate.
Maximum operating pressure of 75.4 psi provides the differential pressure capacity needed for sustained filtration of viscous solutions and high-flow process streams.
Polypropylene capsule filters serve as effective guard filters upstream of sensitive analytical instruments and sterilizing-grade membrane devices, removing gross particulates that would cause premature fouling.
All-polypropylene capsule construction ensures that membrane, support layers, and housing share identical chemical resistance, eliminating compatibility mismatches across the device.

Key Capsule Construction Features

Polypropylene capsule housing provides broad chemical compatibility from pH 1 to 14, resisting the acids, bases, and process chemicals that degrade alternative housing materials.
Single-use polypropylene capsule construction eliminates cleaning validation requirements, reducing the regulatory burden and turnaround time associated with reusable stainless steel filter housings.
Thermally fused polypropylene construction eliminates adhesives, binders, and O-rings from the fluid path, reducing extractable contamination and simplifying material qualification.
The sealed polypropylene housing is individually integrity-tested during manufacturing, verifying membrane installation and housing seal quality before the device leaves the production facility.

As single-use filtration continues to replace reusable housings across pharmaceutical and laboratory environments, your capsule filter selection determines both the quality of the filtrate and the efficiency of the workflow. For this application, when your application requires chemical resistance across the full pH range combined with the ability to withstand autoclave sterilization, all-polypropylene construction meets your combined durability requirements. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Sterilization Guidance

Standard autoclave cycles at 121 degrees Celsius are compatible with the polypropylene housing and membrane assembly, allowing preparation for sterile applications at the point of use.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.