The brass male-male M18x1.5mm to M14x1.5mm adapter does double duty (see yellow nylon equivalent). The male adapter connects the pistol handle to the hose female black adapter. Metric threads ( M18x1.5MM to M14x1.5MM) Like the yellow connector it can also connect the plastic acid wand to all spray nozzles but it should not be used with acids or bleaches. Both the brass and yellow adapters can be replaced by the latest generation quick release male
