1/4" magnetic drain valve. Attracts and holds microscopic ferrous particles that can be used for further analysis. Used in place of the 1/4" spring loaded drain valve that comes standard with the Oil Sight Glasses. This part is the drain valve only and does not include the Oil Sight Glass bottle.
1/4" magnet drain valve is easily interchanged with the standard drain valve on any OSG or OSGL product. The strong pull from this rare earth magnet will
attract and hold microscopic ferrous particles. Further analysis of these particles can help determine what component is failing for replacement.