Liquid fillers come in different types and designs, including gravity fillers, piston fillers, pump fillers, and overflow fillers. The type of liquid filler chosen depends on the viscosity of the liquid being filled, the speed of filling required, and the accuracy of the fill.

Gravity fillers use gravity to fill containers, and are suitable for filling thin liquids such as water and juice. Piston fillers use a piston and cylinder to pump the liquid into the container, and are ideal for thicker liquids such as oils and creams. Pump fillers use a pump to transfer the liquid from a holding tank to the container, and are suitable for filling a wide range of liquids. Overflow fillers use a nozzle that fills the container to a predetermined level, and are commonly used for filling bottles of different sizes and shapes.