Weller tip cleaning sponge for use with weller soldering iron stands weller t0052241999 this genuine weller tip cleaning sponge helps keep your soldering iron s tip clean and ready for use regularly wiping your soldering iron s tip on the moistened sponge keeps it free from solder and flux build ups which can cause defective or poor joints weller t0052241999 tip cleaning sponge for weller soldering iron stands