The German-made model we found has a contoured neck and trigger that fit comfortably in your hand. A translucent window on the side shows the fluid level, with markings to help you mix solutions right in the bottle. It has a brass nozzle insert and a rubber gasket, resistant to mild household cleaners. It is not suitable for use with acidic solutions including dilute vinegar. The spray can be adjusted from a fine mist to a precise jet.
The 500ml (16 oz) sprayer is lightweight and convenient for small jobs, and the higher capacity of the 1 litre (1 quart) sprayer means fewer trips to the tap for bigger jobs.