Description
The K&N Filters RU-1780 Universal Air Filter is engineered for a diverse range of applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, and tractors. This versatile filter is designed to accommodate various angles and offset diameters of air intakes, ensuring a reliable solution for your air and fuel delivery needs.
Constructed with ultra-strong molded pliable rubber flanges, the RU-1780 absorbs vibrations while providing a secure attachment. These flanges can be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes, making it adaptable to different setups. Additionally, the K&N universal air filter is washable and reusable, allowing for easy maintenance and long-lasting performance. This feature not only enhances convenience but also contributes to sustainability by reducing waste.
Features
- Constructed with ultra-strong molded pliable rubber flanges
- Flanges can stretch for up to 1/16 of an inch (1.5mm)
- Washable and reusable design for easy maintenance
- Compatible with a wide variety of applications
Frequently Asked Questions
What is the main benefit of using the K&N Filters RU-1780?
The main benefit is its versatility, as it can be used in various applications and is washable and reusable.
How does the flange design enhance the filter’s performance?
The ultra-strong molded pliable rubber flanges absorb vibrations and allow for secure attachment, ensuring optimal performance.
Can the K&N Filters RU-1780 be used in different setups?
Yes, the flanges can stretch for up to 1/16 of an inch (1.5mm), making it adaptable to fit different air intake configurations.
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.

















