The RL Flo-Master 2 Gal. Heavy Duty Sprayer features a translucent, polyethylene tank for monitoring the liquid level. The automatic pressure-release valve and comfortable-grip pump handle with a built-in measuring cup provide ease of operation. The fiberglass wand includes an adjustable nozzle for stream selection. Please note, many commonly used chemicals contain surfactants that can cause clogging if left unused in the sprayer for extended periods.