A common misconception is that oil filters and spacer oil strainers are the same thing. While this is not totally true, they do bear many similarities to one another. Their first similarity is the task they perform: to remove contaminants from oil as it passes through. Additionally, both filters and strainers protect downstream equipment by removing debris or contaminants that would otherwise compromise the integrity of the component. Both filters and strainers can be required by law or regulation for a variety of safety or environmental reasons, to improve the efficiency of the system, or merely for practical purposes. In many cases, the flowstream would be rendered useless without a filter or strainer.
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