K&N Universal 4" Flange / 9" Tall Air Filter

Retail Price: $77.99 Our Price: $74.99
Vendor: K&N SKU: RE-0870


The 4’’-Flange and 9”-High universal air filter is made of cotton gauze and is designed to be washable and reusable. K&N universal air filters are constructed with ultra-strong molded pliable rubber flanges that can absorb vibration while providing a secure attachment. The rubber can also be stretched between sizes for optimal fit. K&N air filters offer high airflow, excellent filtration and long service life.

The K&N RE-0870 4 inch flange and 9 inch tall universal air filter is backed by a 1-year/unlimited mileage warranty against manufacturer defects from the date of purchase. However, if the filter was purchased as a direct replacement for a K&N air intake system, it is backed by the 10-year/million-mile limited warranty.

If you purchase a K&N RE-0870 universal air filter, the package will contain one filter that is 9 inches in height with a six inch diameter base, a 4.625” diameter top, and has a 4” flange that is 1.75 inches long.


Air Filter Material Cotton Gauze
Package Quantity 1
Washable Yes
Flange Type Centered
Flange Inside Diameter 4 in (102 mm)
Air Filter Shape Round Tapered
Top Material None
Top Style Rubber
Top Outside Diameter 4.625 in (117 mm)
Height 9 in (229 mm)
Flange Length 1.75 in (44 mm)
Flanges 1
Base Outside Diameter 6 in (152 mm)
Warranty 1 Year Limited
Air Filter Color Red
Product Style Round Tapered Universal Air Filter