Equipped with a male and female fitting, the instantaneous adapter is non-symmetrical and helps firefighters to connect hoses quickly.
What is an adapter?
Fire Adapters are plumbing fittings that allow fire hose couplings to be safely interconnected with couplings of varying sizes, threads, or mating surfaces. Adapters can also safely connect couplings to other appliances. In an emergency, fire adapters can help to save time by connecting mismatched hoses and couplings speedily.