The Fleetguard Spin-on Fuel Water Separator is designed to fit perfectly into your equipmentSeparator is is designed to extend the life of your fuel system by separating water and contaminants from fuel, which in turn improves engine performance. It has an emulsified water separation efficiency of 96%, ensuring that your fuel is free from any impurities that could harm your engine. The micron rating of 20-microns by SAE J1985 provides assurance of its quality, making it a reliable and durable product. It has a largest OD of 4.37" and an efficiency, TWA by SAE J 1985 of 98%, making it one of the best fuel water separators in the marketSeparator is is also designed to provide 100% free water separation, ensuring that your fuel is free from any water that could cause damage to your engine. Overall, if you want to ensure that your fuel system is free from any impurities and contaminants, this the perfect product for you. It is reliable, durable, and efficient, making it a must-have one. FleetPride is your First Click in Heavy Duty®.