The product available in our online store is a compatible filter element with water separator for various Caterpillar generator set models. It has been designed to effectively separate water and fuel to ensure optimal performance. With its standard efficiency, this filter element is suitable for use in the following equipment models: 3508, 3508B, 3512, 3512B, 3516, and 3516B. Upgrade your generator set's filtration system with this high-quality water separator element.