The compressed air lubricator MS-LOE adds a precisely dosed amount of oil to the compressed air for pneumatic components. The oil lubricators of the MS series can be integrated as modules in service units thanks to the simple modular system of the MS series. Four sizes offer a wide flow range. The housings are made of die-cast aluminium, the filter bowls are either made of metal or polycarbonate with a bowl guard. They can optionally also be configured for use in potentially explosive areas of zones 1, 2, 21 and 22 as well as with UL approval.