... Chrome Plating 3. 1/2" , 3/4" with 68, 79, 93 degree centigrade 4. upright, pendent Side wall fire sprinkler of ... sprinkler , side wall fire sprinkler of fire apparatusModel: ZSTB-20-68/79/93Installation: horizontal or vertical against to wallConnection ... thread: 3/4 inchDiameter: 20 mmFlow rate: 115 L/minResponse temperature: 68, 79, ...