The Nito Kohki heavy-duty water gun has a maximum pressure of 25bar and thread size of 1/2in. Also, it has a rubber-insulated body that provides a good grip to handle. This gun comes with an adjustable spray and an auto shut-off. It is used for hot/cold washdown. Note: For the safety of connection and to allow the water gun to swivel in use, it is recommended quick release couplings are used. Warning Heavy Duty Water Guns should not be used with steam