The discharge port filter is made of 304 stainless steel clamp type filter screen, and the sanitary grade straight through ball type impurity separator is described as follows: The sanitary grade filter body is made of high-quality 304 or 316L stainless steel material, and each filter is carefully selected and manufactured to ensure a streamlined design without cracks, with good surface and maximum corrosion resistance to meet the quality standards of preventing bacterial contamination. The structure of the sanitary grade filter sleeve ensures that there are no dead corners on the inner and outer surfaces of each sleeve, which can be disassembled and cleaned, and is easy to operate.