Lotion pumps are used to dispense a wide range of liquids, including lotions, creams, and soaps. There are several specifications of lotion pumps that differentiate them from one another, including:

Closure size: Lotion pumps come in different closure sizes, which determine the size of the bottle or container opening where they can be fitted. Common closure sizes for lotion pumps include 18/410, 20/410, 24/410, and 28/410.

Dip tube length: The dip tube is the plastic tube that extends from the pump to the bottom of the bottle, allowing the liquid to be dispensed. The length of the dip tube can vary depending on the bottle size and shape. It is important to choose a lotion pump with a dip tube that is appropriate for the bottle or container being used.

Output rate: The output rate of a lotion pump determines how much liquid is dispensed per pump. Output rates can vary from 0.5ml to 4ml per pump, depending on the viscosity and thickness of the liquid being dispensed.

Closure type: Lotion pumps can have different closure types, including screw-on, snap-on, and twist-lock closures. The closure type determines how the pump is secured to the bottle or container.

Material: Lotion pumps can be made of different materials, such as plastic, metal, and glass. Plastic lotion pumps are the most common and are available in a range of colors and styles.

Locking mechanism: Some lotion pumps have a locking mechanism that prevents accidental dispensing or leakage during transport. This can be useful for travel-sized bottles or products that may be shipped.

Design: Lotion pumps can have different designs, including smooth or ribbed, tall or short, and glossy or matte. The design can affect the overall aesthetic of the product and may be chosen to match the branding or packaging of the product.

The specifications of lotion pumps can vary depending on the application and product requirements. It is important to choose a lotion pump that is compatible with the bottle or container being used and that can dispense the appropriate amount of liquid with ease.