fire sprinkler,fire nozzle, spray nozzle, firefighting euqibment, fire safety, sprinkler head,sprinkler,glass bulb sprinkler Style: Water Curtain, horizontal installationK=5.6(psi) or K=80 (kpa)Standard response--5mm glass bulb diameter or quick response--3mm glass bulb diameter1/2 inch or 3/4 inch threaded sizeTemperature rating: 135F,155F,175F,200FNatural brass or chrome finishedMax working ...