Cattle oilers help to keep pests away and help against certain diseases like pink eye. These oilers come in 3 different sizes(28″, 4ft, and 6ft). You can adjust the oiler height from 4 ft to 6 ft. Heavy duty mineral feeder has 13 gal. capacity, this feeder protects valuable mineral from the elements. A large 28 in. x 24 in. hood opening on the mineral feeder provides easy access cattle. We can build bigger stands for all sizes of oilers. The buzz-off oilers do have replacement mesh and mops available for order when the current one gets worn out.