The Mercury 35-18458Q4 fuel filter is a high-quality filter designed to be used in petrol engines. This filter is specially designed to remove contaminants and dirt particles from the fuel before it enters the engine. The filter has high efficiency and ensures optimum engine performance and reliability. The 35-18458Q4 filter has a durable construction with a metal housing and high-quality filter elements. The filter is easy to install and maintain, and it can be easily replaced when needed. The filter has a maximum flow rate of 90 gallons per hour and is suitable for use in various Mercury outboard engines and watercraft. With the Mercury 35-18458Q4 fuel filter, you can be confident that your engine will be protected from harmful particles in the fuel and continue to perform optimally. This filter is an important part of your engine's maintenance and it is recommended to check and replace it regularly to maintain optimum performance.