The Eaton HAYFLOW filter provides the convenience of a filter cartridge with the low price of a filter bag. Its Polypropylene Extended Life felt lasts five times longer than a standard filter bag. The Polypropylene SENTINEL seal ring provides long-lasting filtration that eliminates bypass for an extremely efficient filtering process. This product is size 2 and has a Micron Rating of 1. Sold in box quantities of 8.