Fire nozzles are made in stainless,teflon,brass,with a hex and easily installed design. It kindly adjust the spray angle. Fire nozzles featuresMale High Impact Fire Fighting Nozzle with a hex design, could provid easy-installed for customer. Unique whirl structure supply a better control in spray angle, flow rate, lengthening life-time at the same time. Stainless full cone spiral nozzle