Brochures and useful documents for grain drying and aeration, available from REL Group: For enquiries and any questions you may have about our products and services, please contact us. Air Lanco - Fan Aeration Options (PDF)PTM Technology - Aeration System (PDF)Grain Guard - Aeration Systems (PDF)Westeel - Silo Storage Options (PDF)Alvan Blanch Drier (PDF)