Profile: Aimer Products Ltd. specializes in manufacturing X-ray tubes and laboratory glass wares. Our glassware includes bespoke glassware, ASTM glass ware, IP glassware, glass tubing & rod, petroleum testing glass, and jointed glassware. Our sintered disc grade 5 is a compound disc consisting of a thin layer of grade 5 supported by a grade 3 disc, the whole being fired into a single unit with the grade 5 surface uppermost. This is used entirely for bacterial filtration, replacing many type of ceramic filter. It is suggested that the bulk of solids be removed from the solution first by passing through a grade 3 or 4 disc.