We are Pleased to inform you that our production team has added new product in our product portfolio.These over-sized units stop airborne dirt from entering tanks as liquid is removed. They provide clean, filtered air fast to replace liquids going out at high rates up to hundreds of liter per minute.Giant Tank Breathers screw into BSP / NPT ports up to 4 inches in size . The threaded base is of metal which is strong, lightweight, and seals well against metal. The strong, steel cover protects the filter elements.A wide selection of filter elements is offered. They are pleated to increase surface area and dirt holding capacity. Elements rated 40 microns and finer are made of synthetic or cellulose (paper) material. Those rated 74 and 149 microns are of stainless steel wire mesh. Elements are easily replaced and replacements are always available.