Green Filter Crankcase Breather Air Filters

Green Filter Crankcase Breather Vent Filters are designed to work on engines, transmissions as well as oil and gas tanks by clamping directly to either plastic or metal tubing.

Green Filter has earned a reputation as being a leading manufacturer of world-class filters used by many of the world renowned racing engineers, engine builders, drivers and enthusiasts that regularly "win on Sunday". Their roots trace back to 2001 when founder Mark German utilized his racing experience, parts manufacturing expertise, and genuine passion for improving vehicle performance to bring easy to capture “horsepower” to the engine performance community by offering an air filter that outperformed those available. His goal was to provide a performance filter that would become highly accepted and sought after by racing professionals and leading engine performance engineers and builders of high performance vehicles.

Now that they have accomplished that goal, whether you are looking for increased fuel mileage, a car performance enthusiast, a non-professional racer, or one of the many thousands that meet on the weekend to show off their cars and/or compare race times from weekend trips to the tracks throughout the world, Green Filter is working hard to offer you the same high performance filter for your specific needs.

So, what sets Green Filter air filters apart from the competition?

Woven Cotton

Deep pleats in the double-layered cotton create a 10 to 15 percent increase in filtration surface area, allowing a greater volume of air to move more freely into the cylinders while maintaining superior filtration. The specially designed cotton filter traps particles as small as 5 microns.

Steel Mesh

Steel wire mesh encases the cotton filter, providing strength and dent resistance for optimum performance under the toughest conditions.

Proprietary Lubricant

Green Filter oil creates a positive magnetic charge with the filter's steel mesh, which attracts negatively charged dust particles entering the filter. This causes them to cling to the mesh, allowing the cotton to remain clear for maximum air flow.

Low Pressure Molding

Other filters use a simple pressure-molded injection process to bond the perimeter rubber to the interior components. That method saves manufacturing time, however a considerable amount of rubber can seep onto the filtering surface. Such spillover can restrict as much as 25 percent of intended air flow. Green Filter uses a four-step production process which virtually eliminates rubber seepage and maintains maximum air flow through the filter.

Custom Molds

Green Filter's hand-molded flexible rubber base offers an airtight seal and absorbs vibration. The molds are created from an extensive on-site library of factory air boxes, with each part custom made on CNC machines. They don't reuse elements between filters or make universal molds, so you can be sure that your Green Filter will fit perfectly.

In-House Technology

Green Filter's production technology is always improving with the most cutting-edge processes and equipment. The product line is ever-expanding to cover all of your needs, and Green Filter stands by their guarantee of providing customers with what they think is the best filtering technology available.