Pentek FILTER 3F11 800000919 Pleated Filter Cartridge

The Pentek FILTER 3F11 (part number 800000919) is a 1-micron pleated depth filter cartridge designed for industrial fluid conditioning applications. Manufactured by Pentek (a brand of Parker Hannifin), this filter cartridge is commonly installed as a final-stage filter in closed-loop industrial fluid systems—such as machine tool coolant circuits, hydraulic power units, or lubrication systems—where fine particulate control is required to protect pumps, valves, and sensors.

Construction and Performance

The 3F11 cartridge uses a non-woven polyester pleated media that provides a high surface area for effective particulate capture while maintaining low pressure drop. The 1-micron nominal rating ensures the removal of fine particles that can cause abrasive wear in hydraulic and lubrication systems, leading to longer component life and reduced downtime.

Fluid Compatibility

The filter element is chemically compatible with a wide range of industrial fluids, including mineral oils, synthetic hydraulic fluids, water‑based coolants, and certain process fluids. It is not certified for potable water applications. The open-ended design with gasketed sealing ensures a tight fit in standard 10-inch filter housings, preventing bypass of unfiltered fluid.

Application Domains

The Pentek 3F11 is commonly found in hydraulic power units, machine tool coolant systems, lubrication oil circuits, and industrial process fluid loops. Its pleated design offers high dirt-holding capacity, extending service intervals in applications with moderate to high particulate loading.

Lifecycle Status

The manufacturer has discontinued the Pentek 3F11 cartridge. Procurement is dependent on aging inventory or third-party equivalents. Users should verify cross‑reference options before purchasing.