3B Filters

3B Filters – High-Pressure, Precision Filtration from a Trusted U.S. Manufacturer

3B Filters Inc. is a U.S.-based specialist in high-pressure hydraulic and pneumatic filters, headquartered in Oak Lawn, Illinois. Founded in 2001 as part of Demco Products, 3B Filters continues decades of precision machining heritage to provide reliable, high-performance filtration solutions.

What Makes 3B Filters Unique

• Designed for pressures up to 40,000 PSI, ideal for heavy-duty industrial, aerospace, petroleum, and defense applications.

• Maintains an ISO 9001:2015 quality management system for consistent reliability.

• Offers custom filter housings in aluminum, stainless steel, nickel alloys, and other materials.

• Core values: Quality, Dependability, and Service—rapid quoting, fast conversion, and precise solutions.

Product Capabilities & Applications

• 8100 Series – Compact in-line filters for up to ~10,000 PSI

• 82, 83, 84 Series – In-line filters rated for 6,000–30,000 PSI

• 8500 / 8600 / 8700 Tee-Type Filters – 6,000–40,000 PSI depending on model

• Spin-On Filters (89/90) – Durable, lower-pressure industrial solutions

• Precision Filter Discs (SFD) – Specialty and instrumentation applications

Industries Served

• Aerospace & Defense

• Chemical & Petrochemical Processing

• Oil & Gas

• Transportation & Mobile Hydraulics

• Industrial Instrumentation & Testing

Why Buy from Online Filter Supply

At Online Filter Supply, we provide:

• OEM 3B Filters – Genuine 3B-manufactured filter housings and elements

• Replacement Parts & Filters for 3B Filters – Cost-effective alternatives for compatible systems

• Quick quoting and fast-turn solutions for industrial applications

• Expert support to cross-reference part numbers and find the right filter or assembly

Perfect For

• Heavy-duty hydraulic systems

• Industrial machinery and processing equipment

• Construction, agricultural, and off-road equipment

• Critical instrumentation requiring precision filtration

Online Filter Supply ensures that whether you need OEM 3B Filters or replacement parts and filters for 3B, your equipment stays protected, reduces downtime, and operates at peak efficiency. Browse our selection today to find the right filter or component for your system.