These stainless steel brewing filters are designed to fit inside the 20, & 50 liter Speidel Braumeister brewing units. Made from our heavy duty 304 stainless steel, the filter features a 300 micron side and bottom mesh material and has a 1/2" stainless steel hollow rod extending the full length of the filter and down through the bottom an extra 2" inches. This allows the filter to easily slip onto the rod inside a 20, & 50 liter Speidel Braumeister unit and with the 2" extension on the bottom it keeps the filter up off of the heating element and temperature wells. The 20L filter itself stands 12" tall (14" with the bottom rod extension) and is 6" diameter making it a perfect fit for the 20 liter Speidels Braumeister unit. The 50L filter itself stands 16" tall (18" with the bottom rod extension) and is 10.5" diameter making it a perfect fit for the 50 liter Speidels Braumeister unit. The construction is all 304 stainless steel with heavy duty welds attaching all of the components. Like our other great filters you'll love it the moment you take it out of the box & will thoroughly enjoy how much easier it makes brewing in your Braumeister. The unit is produced in the United States and can be shipped internationally. Making larger batch sizes- Contact us for a custom built larger diameter filter.