BBA Pumps vacuum filters for well-pointing are made from special shock proof plastic pipes. The spears are equipped with a special inner tube to prevent the pump from sucking in air through the top of the perforation. The filter diameter is 50 mm and it is equipped with 0.3 mm perforation with a perforation length of one metre.

This item is packaged in sets of 76 filters. When ordering large quantities please order in multiples of 76 pieces.