Koganei EF300-02 Exhaust Filter 300 LPM 1/4" FNPT Pneumatic Muffler Japan

Koganei EF300-02 Exhaust Filter 300 LPM 1/4" FNPT Pneumatic Muffler Japan

The Koganei EF300-02 is a pneumatic exhaust filter and muffler designed to silence and filter the exhaust air discharged from pneumatic cylinders, solenoid valves, and other air-operated devices. It attaches directly to the exhaust port of a pneumatic component via its 1/4" FNPT threaded connection and passes exhaust air through an internal filter element that traps particulates and reduces noise. The transparent housing allows visual inspection of the filter element without disassembly.

Specifications & What's Included

• Manufacturer: Koganei (Made in Japan)
• Model: EF300-02
• Type: Pneumatic Exhaust Filter / Muffler
• Maximum Flow Rate: 300 LPM (Liters Per Minute)
• Port Size: 1/4" FNPT (Female National Pipe Thread)
• Housing: Translucent amber/smoke-tinted body for filter element visibility
• Filter Element: Visible mesh/pleated element inside translucent housing
• Mounting: Threaded direct-mount to exhaust port via hex FNPT fitting at base
• Country of Manufacture: Japan
• Note: Housing has a visible hairline crack; does not impair function per inspection

Applications

Pneumatic exhaust filters like the Koganei EF300-02 are standard components in factory automation and industrial pneumatic systems. They are installed on the exhaust ports of pneumatic cylinders, directional control valves, solenoid valves, and actuators to muffle exhaust noise and prevent oil mist or fine particulates from being discharged into the surrounding environment. This is especially important in clean or semi-clean production environments and where operator noise exposure is a concern. The EF300 series is a compact, direct-mount design commonly used with small-to-medium bore cylinders and valve manifolds in automated assembly, robotics, and general pneumatic machinery. Koganei is a Japanese manufacturer with a long history in pneumatic components, and their exhaust filters are used widely across semiconductor, electronics, food processing, and general industrial automation applications.