Liquid Viscosity (Thickness):

• Best for: Water-thin to light oil consistency.

• Not for: Thick liquids like lotions, creams, or sauces. These require a different mechanism (like a lotion pump or trigger dispenser).

Spray Pattern and Output:

• Mist: For wide, even coverage (cleaners, disinfectants).

• Stream/Jet: For targeted application (lubricants, stain treatments).

• Foam: For clingy, no-drip application (soaps, shampoos).

• Output is measured in mL per stroke (e.g., 1.5mL, 3.0mL).

Closure Size (Bottle Neck Finish):

• Must match the bottle's thread. The most common standard sizes are:

  • 28-410: The most popular size for many household and industrial bottles.

  • 24-410: Common for smaller bottles (e.g., 16oz/500ml).

• Always confirm your bottle's neck finish specification.

Locking Mechanism:

• A twist-to-lock feature is essential for safety and preventing leaks during transport or in a bag.

Quality and Cost:

• Economy Grade: Basic functionality, suitable for water-based products with a short shelf life.

• Standard Grade: Good all-around performance for most retail products.

• Premium Grade: Higher quality materials, more consistent spray, better sealing, and designed for a longer lifecycle.