Industrial Specialties Mfg., Inc. offers a series of lightweight breathers to help keep tanks, reservoirs and systems clean. Made from durable nylon, the breathers have a standard 48-micron screen with optional porous materials in 35, 70 and 250 microns. Both male and female threads are offered in a size range of 1/16 to 3/4 (1.58-19.05 mm). Breathers can be mounted in any direction and the protective caps, available in a range of colors, are removable for maintenance or cleaning. http://www.industrialspec.comsales@industrialspec.com