Cougar Industries has been the leader in flow-aids since 1964 helping industry promote and maintain flow of a wide range of powders and bulk solids. Our business is helping you get your material moving. With the Model RA bin aerator we promote the flow of dry powder materials from bins and silos using the proven principle of aeration. As the material in your bin settles, air escapes and the material packs and behaves as a solid mass. The Model RA is a heavy-duty aerator provided in the industry-standard rectangular size of 3-¼”x 7-½” and is used to introduce low pressure air into the material in the bin, thereby restoring its natural aerated state allowing the material to flow. In this manner bridging, ratholing and other material flow problems can be resolved.