aFe Magnum FLOW Pro 10R Universal Air Filter: 6F x 8B (INV) x 8T (INV 3-1/

6F x 8B (INV) x 8T (INV 3-1/2) x 9H in The Momentum HD is designed around a massive 1,000cfm performance 360 degree radial flow air filter with 10-layers of progressive cotton media producing 99.47% cumulative efficiency. The unique air filter to housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. The air filter is wrapped in reinforced metal providing maximum strength to prevent filter collapse. Filter Dimensions: Flange - 6" , Base/Top - 8-1/8" with inverted top, Height - 9", Pleat depth - 20mm, Number of Pleats - 70.