Buyers Product Tfa005715 Hydraulic Filler-Strainer Breather Cap 40 Micron The Chrome Filler-Strainer Breather Cap Assembly from Buyers Products keeps contaminants out as you fill your oil reservoir, while acting as a fresh air ventilator to allow the tank to "breathe." It prevents a vacuum from building up in the tank. It contains a quarter-turn filler/breather cap that will filter out contaminants as small as 40 microns. You can order it with a locking tab and a 30 mesh/500 micron strainer basket. All mounting hardware is included. "Hydraulic Fluid Only" is stamped on the cap to prevent damage caused by using the wrong fluid. Keeps contaminants out while you fill the reservoir tank Allows your reservoir to "breathe" and prevents a vacuum from building up More Than Just Parts: From snow and ice equipment to toolboxes, hydraulics, towing, truck and trailer hardware to our innovative lighting products-it's amazing what Buyers Products can do for your truck We Do Things The Right Way: We design products like we're building them for ourselves, because we are; Our teams are staffed with engineers and experts who know how to make a product exceptional Durable and Dependable: Founded in 1946, Buyers Products has become a leader in the truck equipment industry though our commitment to customer care, innovation, and value across our range of products