Monnier, Inc. | 111 followers on LinkedIn. Monnier, Inc. has been manufacturing the highest quality filters, regulators and lubricators in Algonac, Michigan since 1929. Our expansive line of air preparation products ensures that any compressed air system has the appropriate level of filtration, a precise and consistent line pressure and, when appropriate, the correct amount of lubricant in the air. Monnier, Inc. has been an innovator in the fluid power industry for decades and continues to introduce new products to the market.