go to smart & final and pick up the the spraymaster bottle (iirc, $5-$6), it's pretty heavy duty which will suit the WB...
Hi-tech components make this the only sprayer that stands up to most solvents and acids. Chemicals that destroy ordinary sprayers don't harm Spraymaster.
Dispenses more than 2 1/2 times as much liquid per stroke as standard sprayers. Saves time and effort. The nozzle adjusts to a mist, spray, powerful stream, and anything in-between. Extra long trigger is easier to squeeze.
The opaque silver bottle protects light-sensitive chemicals. A narrow clear "window-stripe" helps use the graduation and dilution scales. The "write-in" section permits identification of the bottle contents to avoid guesswork and costly mix-ups. Wide base makes it tip resistant. Heavyweight bottle resists chemicals and denting. Holds a full quart of liquid.Opaque Silver Bottle protects light-sensitive chemicals.
The Spray Master bottle is made of High Density Polyethylene. It is a heavier gram weight than out typically natural color delta round bottle. Also, the Spray Master is colored (gray) to protect the chemicals from the sunlight. Bleach can not be used in the spraymaster.