Description
The K&N Filters RU-4450 Universal Air Filter is engineered for versatility, making it suitable for a wide range of applications, including racing vehicles, generators, snowmobiles, and more. This filter stands out with its ultra-strong molded pliable rubber flanges that absorb vibration and ensure a secure attachment. The design allows for stretching up to 1/16 of an inch (1.5mm) to accommodate various air intake sizes.
Constructed to be washable and reusable, the RU-4450 provides an effective solution for air filtration needs. Its ability to be cleaned and reused not only enhances convenience but also contributes to sustainability. With a focus on functionality, this air filter is a reliable choice for those looking to maintain optimal air flow in their equipment.
Features
- Ultra-strong molded pliable rubber flanges
- Washable and reusable design
- Can stretch up to 1/16 of an inch (1.5mm)
- Designed for various applications including racing vehicles and generators
Frequently Asked Questions
What is the K&N Filters RU-4450 made of?
The filter features ultra-strong molded pliable rubber flanges.
Can the K&N Filters RU-4450 be reused?
Yes, the RU-4450 is washable and reusable.
How does the flange design benefit the installation?
The pliable rubber flanges absorb vibration and allow for secure attachment.
Manuals & Instructions
âš WARNING (California Proposition 65): WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.
















