To prevent dangerous low liquid supply, reservoir is equipped with low-level safety switch. Filter assembly keeps contaminants in liquid from damaging expensive equipment. Filter element, 100-mesh, changes out easily for cleaning. Standard acrylic reservoir comes in 1 quart, 1/2 gal, and 1 gal capacities. Transparency allows visual check of liquid level and condition. Buna-N gaskets provide positive seal throughout. For higher temperatures, Pyrex models are available.