While "RAR" files of the are often searched for on third-party sites, the official software is no longer distributed as a standalone downloadable archive like a RAR or ZIP for general purchase.
This is a more comprehensive mobile version that includes over 240 fittings and is based on the full web application. Historical and Third-Party Downloads Download ASHRAE Duct Fitting Database rar
You may encounter older versions (like ) on engineering forums or third-party file-sharing sites. Software Informer: Lists version 2.2 as a legacy reference. While "RAR" files of the are often searched
Downloading engineering software from unofficial sources via "RAR" files carries risks of malware or outdated, inaccurate data. For professional design work, the official ASHRAE cloud version is recommended to ensure compliance with the latest standards. Duct Fitting Database - ASHRAE Software Informer: Lists version 2
Sites like HVAC Simplified or various Facebook engineering groups sometimes host direct download links to Google Drive folders containing older installer files.