GenPore

What GenPore does

GenPore, a division of General Polymeric Corporation, designs and manufactures free-sintered porous plastic filters, sheets, tubes, rods, molded parts, and custom components for air, gas, oil, and water filtration. Its proprietary Porous-Poly technology uses controlled particle size distribution and precise temperature cycles to produce interconnected cell structures with pore sizes ranging from 5 to 1,000 microns across UHMWPE, HDPE, LDPE, VLDPE, and polypropylene resins. GenPore offers both hydrophobic and hydrophilic formulations, FDA/USDA-approved high purity resins, dual surface-and-depth filtration up to 99.8% efficiency, and large-format fluidizing plates up to 48 x 96 inches, all manufactured at a 115,000 sq. ft. ISO 9001:2015-certified facility in Reading, Pennsylvania.

The company operates a B2B direct sales model targeting three primary verticals: medical and biomedical (filters, catheter vents, SPE and pipette tip filters for chromatography, PCR, and DNA sampling), industrial manufacturing (battery vents, pneumatic mufflers, fluidizing plates, self-sealing valves), and consumer products (water purification, fragrance release, CO2 diffusion). Revenue is generated through quote-based pricing on both standard catalog items and custom-engineered components, with in-house CNC tooling supporting 1-2 week prototypes and multi-cavity molds for high-volume runs, including hundreds of millions of pipette tip filters annually. Distribution is exclusively direct, via the company website, a toll-free sales line, and inside sales staff reaching customers across North America, Europe, and the Pacific Rim, with JIT delivery and stock/release inventory programs.

GenPore is privately held, with no disclosed external institutional investment, and has operated continuously since 1969 under the ownership of General Polymeric Corporation. There are no documented acquisitions, funding rounds, leadership changes, or material restructuring events in the available data.

Name

GenPore

Legal name

General Polymeric Corporation

Website

https://genpore.com

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

51–100 employees

Short description

GenPore, a division of General Polymeric Corporation, designs and manufactures free-sintered porous plastic filters, sheets, tubes, and custom molded components for medical, industrial, and consumer product manufacturers across North America, Europe, and the Pacific Rim.

Ownership category

akta.pro rank

Product category

Industrial Filtration Components

NAICS

Plastics Product Manufacturing (3261), Plastics and Rubber Products Manufacturing (326)

SIC

Plastics Foam Products (3086)

akta.pro primary industry

Polyethylene (PE) Foam Manufacturing (IMANAIAE)

akta.pro secondary industry

Polypropylene (PP) Foam Manufacturing (IMANAIAF)

Keywords

• Porous plastic filters
• Air and gas filtration
• Water and liquid filtration
• Medical filtration components
• Fluidizing plates and sheets

Headquarters

HQ city

Reading

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Porous Plastic Product Sales: GenPore generates revenue through the sale of porous plastic filters, molded parts, sheets, tubes, rods, and custom components. Products include water and liquid filters, air and gas filters, SPE column frits, pipette tip filters, wicks and reservoirs, mufflers and silencers, fluidizing plates and sheets. Both standard catalog items and custom-engineered products are sold with pricing based on specifications and volumes.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

GenPore manufactures free-sintered porous plastic filters, sheets, tubes, rods, and molded components from UHMWPE, HDPE, LDPE, VLDPE, and Polypropylene for filtration, diffusion, release, and separation of liquids and gases. The company produces standard catalog items and custom-engineered components with controlled pore sizes from 5 to 1,000 microns for industrial, medical/biomedical, and consumer product manufacturers.

Product overview

GenPore is a leading manufacturer of porous plastic filters and molded parts, offering a comprehensive portfolio of products including Water & Liquid Filters, Air & Gas Filters, SPE Column Frits, Pipette Tip Filters, Wicks & Reservoirs, Mufflers & Silencers, Fluidizing Plate & Sheet, Porous Plastic Sheet, and Porous Plastic Tubes. These products are built on the company's proprietary Porous-Poly free-sintered material technology, which provides controlled porosity for filtration, diffusion, release, and separation applications. The products range from standard filters for industrial use to specialized medical and laboratory filters, serving markets across industrial, medical, and consumer products sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Water & Liquid Filters Porous plastic filters designed with specific pore sizes and void volumes for optimal filtration efficiency and flow rates, used for removing bacteria and containing granular carbon to eliminate harmful chemicals in water and liquid applications.
• Air & Gas Filters High-quality porous plastic filters for precise control of air and gas, available in hydrophobic or self-sealing materials for aeration and venting applications including battery vents.
• SPE Column Frits Frits made from UHMW Polyethylene or PE copolymers with average pore sizes from 5-50 microns, used in liquid chromatography and solid phase extraction columns for biomedical and chromatography filters.
• Pipette Tip Filters Porous plastic pipette tip filters produced in high-volume quantities (hundreds of millions) that serve as vents to prevent aerosol contamination in air displacement pipettors, used in PCR, DNA amplification, forensics, and tissue culture applications.
• Wicks & Reservoirs Porous plastic media designed for controlled release of fragrances, lubricants, and aqueous solutions, utilizing capillary action to draw fluids from reservoirs for dispersion through absorption or evaporation.
• Mufflers & Silencers Threaded porous plastic mufflers and silencers designed for optimum noise reduction, air flow, and back pressure management through custom molded configurations and carefully controlled pore sizes.
• Fluidizing Plate & Sheet Fluidizing plates made from UHMW Polyethylene providing uniform air distribution for diffusing, aerating, and fluidizing materials, available in various thicknesses (1/4" to 3/4"), dimensions, and shapes for powder coating, filter plates, and chemical process tanks.
• Porous Plastic Sheet Free-sintered porous plastic sheets with precise control over pore size (10-125 microns), thickness (1/16" to 1"), and polymer type, available in hydrophilic or hydrophobic formulations for filtering particulates, diffusing gases, and wicking applications.
• Porous Plastic Tubes Porous plastic tubes made from UHMW Polyethylene, PE co-polymers, and Polypropylene with pore sizes from 5-200 microns, outer diameters from 0.250 to 30 inches, and lengths up to 6 feet, designed for diffusion, aeration, and filtration applications.

Quantifiable outcome

• Filtration efficiency up to 99.8% with tortuous filtration path
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators4 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• Porvair Filtration Group: Porvair produces specialized filtration and separation products including porous plastic and metal elements for industrial process, life science, and aerospace applications, overlapping with GenPore in laboratory and process filtration.
• Porex Corporation: Porex is the most direct competitor to GenPore, manufacturing porous plastics (sintered PE, PP, PTFE) for filtration, wicking, venting, and diffusion applications across medical, industrial, and consumer markets using nearly identical free-sintering processes.
• Mott Corporation: Mott manufactures porous metal and plastic media for filtration and fluid control, competing in many of the same industrial, medical, and laboratory fluid handling applications served by GenPore's porous plastic products.

Broad incumbents

• Sinterflo / Entegris filtration division: Entegris supplies advanced filtration media and fluid handling solutions for semiconductor, life sciences, and industrial customers, competing with GenPore in high-purity filtration and pipette/bioprocess filter media segments.
• Saint-Gobain Life Sciences: Saint-Gobain provides porous polymer and membrane filtration products for biopharmaceutical and laboratory applications, with overlapping presence in pipette tip filters, vents, and fluid handling disposables that GenPore serves.
• Donaldson Company: Donaldson is an established industrial filtration manufacturer offering air, gas, and liquid filtration solutions including porous media, directly competing with GenPore in industrial fluidizing, venting, and process filtration segments.
• 3M Filtration: 3M offers an extensive portfolio of liquid and air filtration products including porous and membrane media, serving the same industrial, medical, and consumer water filtration customers as GenPore at much larger scale.
• Pall Corporation (Danaher): Pall supplies industrial and laboratory filtration products including porous media for bioprocessing and analytical labs, competing with GenPore in chromatography frits, vent filters, and biomedical filtration.

Emerging players

• Hawach Scientific: Hawach manufactures porous plastic and fritted filtration products for chromatography and laboratory applications, offering lower-cost alternatives to GenPore's UHMW polyethylene frits in SPE columns and analytical labs.

Others

• Cole-Parmer (Antylia Scientific): Cole-Parmer distributes porous plastic lab filtration products including syringe and in-line filters alongside GenPore-style porous elements, serving overlapping laboratory and life sciences customers but as a distributor rather than manufacturer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/general-polymeric-corporation

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GenPore