HET Filter GmbH was established in Altenstadt in 1989. Today, we are part of the Swiss BOLLER Industrieholding AG, which are headquartered in Baden. If required, we can resort to a very solid Group structure. We are a strong team of sales engineers, project managers and service technicians that develops concepts and solutions for you, and implements your projects to individual requirements. Your contact partner accompanies you from the planning phase to the operational start-up and even after putting into operation, we fully stand to our customers. With our service and maintenance products for your filter system, we strive to be your reliable and long-term business partner.