JB Industries Bottle of Black Gold Vacuum Pump Oil ， 1 quart<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The best test to see if your oil is contaminated is through a micron gauge.</li><li>Viscosity is a measure of the weight of the oil.</li><li>Black Gold vacuum pump oil is an ISO 41， special to this type of application.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/418i8x91CqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31nF4SEl6ML.jpg" noproxy>