Volume 24 of the manufacturer’s Quick Delivery Catalog offers a large selection of fan and ventilation products available on a quick delivery or quick build shipping basis. The 132-page catalog includes fans, kitchen ventilation systems, energy recovery ventilators, make-up air systems, indoor air handlers, custom coils, dampers, louvers, and laboratory exhaust systems. An expanded line of fan models is now available with the Vari-Green® motor option. The Volume 24 Greenheck Quick Delivery catalog features combined stock and quick build performance tables to easily show best availability for each product type. Quick Response (QR) codes located throughout the catalog can be scanned to open associated web pages with more detailed product catalogs, installation manuals, specifications, and drawings.