The Aquael Overflow Pipe Strainer for the Versamax FZN Mini is a small yet vital accessory designed to prevent unwanted debris, plants, or even small fish and shrimp from entering the filter’s intake.By attaching this strainer to the overflow pipe, you can protect your aquarium’s inhabitants and ensure that only water and small particles pass through to the filter.This strainer is especially useful in tanks with delicate or small creatures that could otherwise be drawn into the filter. It also helps maintain the filter’s efficiency by reducing the amount of larger debris that could clog the filter media.The Aquael Overflow Pipe Strainer is easy to install and can be removed for cleaning, ensuring smooth operation of your Versamax FZN Mini Hang-on Filter.