Program Information Quality products. Compliant practices. Client-centered solutions. That???s how we???ve become the partner of choice in aerosol and liquid product manufacturing. We are the North American leader in specialty aerosol and liquid product manufacturing. PLZ develops, manufactures, packages and distributes a comprehensive line of contract fill, branded and private-label products. We formulate, blend, fill and package more than 2,500 branded and private-label products.