FILTERS & FILTRATION PRODUCTS   Filter Resources, Inc.   713-6444450   James F. Metcalf, Jr.. President   5929 South Loop East   Houston, TX 77033   Filtration Equipment & Replacement Elements     Penland and Associates, Inc.   409-898-2882 FAX: 409-892-6415   Fred E. Williams, President   P.O. Box 541   Kountze, TX 77628   Environmental Water Systems/Air Systems     Superior Filtration and Equipment, Inc.   409-842-2245 FAX: 842-2226   George Gardner, President   4110 Washington Blvd.   Beaumont, TX 77705   Distributor for Filtration Products and Industrial Equipment