K&N E-3212 Round Cotton Gauze Universal Custom Air Filter, 5-7/8in x 1.8in

Vehicle Fitment

• Universal - designed for custom air intake assemblies and carbureted applications rather than a specific vehicle

Fitment Notes

• Intended for use with K&N custom air filter housings/assemblies, particularly carburetor-based intake setups
• Not a direct factory drop-in for any specific make or model - confirm housing dimensions match before ordering

Features

• Layered, oiled cotton gauze filter media engineered to improve airflow and capture contaminants
• Designed to increase horsepower and throttle response versus disposable paper filtration
• Washable and reusable, engineered to last the lifespan of the application it's installed in
• Open top style for custom intake and carburetor housing integration
• 50-state legal, including California
• Rugged, durable construction using premium materials
• Straightforward installation into compatible custom air filter housings
• Backed by K&N's No-Hassle Lifetime Limited Warranty

Specifications

• Shape: Round
• Filter Material: Cotton gauze
• Outside Diameter: 5.875 in.
• Inside Diameter: 4.875 in.
• Height: 1.81 in.
• Top Style: Open
• Re-Oiling Amount: 0.25 oz.
• Fitment Type: Universal / Custom
• UPC: 024844003706

Included Components

• 1x K&N E-3212 Round Custom Air Filter

Product Description

The K&N E-3212 is a universal round air filter built for custom intake assemblies, with particular application to carbureted setups. Rather than being engineered for one factory air box, this filter is intended to be paired with a compatible custom housing or air filter assembly, giving builders and enthusiasts flexibility when designing or upgrading a custom intake system.

Constructed from K&N's layered, oiled cotton gauze media, the E-3212 is designed to increase airflow and horsepower compared to disposable paper filtration while still capturing contaminants to protect the engine. Because it's washable and reusable, it's built to last for the life of the assembly it's installed on, and it's backed by K&N's No-Hassle Lifetime Limited Warranty.

This filter is best suited for builders working with custom carbureted intake setups or aftermarket air filter housings who need a specific-dimension round filter (5.875 in. OD x 4.875 in. ID x 1.81 in. tall) rather than a factory-specific drop-in. Confirm your housing's dimensions match before ordering, since this is a universal component rather than a vehicle-matched part.