This is a simple pre screen for a pump i made for the common aquarium/paludarium pumps, its now updated with more supports for more stable printing and to make it more universal its now 64mm inside diameter and can be scaled easily to fit different pumps in size, it works well to keep plant material and debris from plugging up the pump inlet and it prolongs the need to clean the filter as well, everyone with duck weed heres your fix lol, enjoy!