This is designed to fit over the top of an air filter to prevent dust and stop dirt/mud going into the filters mesh. The K and N Precharger is ideally used for a off road motor vehicles

Part 22-8044PK Product Specifications
Product Style: Filter Wrap - Round Straight
Wrap Type: Precharger
Color: Black
Material Used: Polyester
Inside Diameter: 5 in (127 mm)
Height: 7 in (178 mm)
Closed Top: Yes
Package Contents: 1 PreCharger Wrap
Package Quantity: 1
Air Filter Shape: Round
Weight: 0.19 lb (0.09 kg)

Fits RU-2820