Which of the following is not part of the standpipe equipment bag?

The double female coupling is not considered part of the standard equipment found in a standpipe equipment bag. Typically, a standpipe system is designed for firefighting operations and includes essential tools and fittings that are frequently needed in emergency situations.

Hose adapters, fire wrenches, and pressure gauges are critical items for firefighters, as they allow for effective connectivity between hoses and equipment, facilitate the tightening and loosening of fittings during operations, and enable the monitoring of water pressure within the standpipe system.

The double female coupling, while a useful piece of equipment in certain contexts, is not a standard component included with the essential tools carried in a standpipe equipment bag. This distinction is critical for understanding the necessary equipment for firefighting operations, which focuses on efficient and effective responses to fire incidents.