Putoline air filters, based on leading-edge open-cell foam technology, bring users major benefits, including:

1. Improved performance through increased airflow
2. Improved protection through finer filtration levels
3. Substantial cost savings through serviceability and re-use

Fully reticulated (open cell) foam, as used in all Putoline filter products, consists of a honeycomb of tiny, interlocking cells of uniform size. When treated with specially formulated filter oil, each passageway is like hundreds of very small centrifugal/oil bath filters connected one to another. In this way, the foam traps and holds the particles throughout the entire volume of foam.

The development of this unique foam represents a major advancement in air filtration technology. As a result, foam air filters, when compared with paper or cotton gauze equivalents, combine great airflow capability, huge dust holding capacity, and very high filtration efficiency for even extremely small particles.

Construction:

• Coarse open-pore foam catches airborne dirt, grime and sand.
• Fine open-pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage.
• Exclusively formulated adhesive ensures glue seams will not break down.
• Thick, flat foam, greaseless sealing ring ensures maximum contact with your airbox, while acting as a breathable gasket for increased air passage.
• Fused outer and inner elements prevent dirt and grime from being lodged between layers. Trapped particles can restrict airflow. If dirt works it’s way into your engine, a pinhead-sized granule will gouge your piston and rings like a bullet.