Detailed used by the database?
Use the following citation: ASHRAE. (2010). ASHRAE Duct Fitting Database (Version 6.00.05) [Computer software]. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers. ashrae duct fitting database 6.00 05 free download
. It includes a subset of the most common supply, return, and exhaust fittings (about 14-15 types) for field use. Trial Versions: Some software hosting sites like Software Informer Detailed used by the database
