Reliable Model F1-56-300 series sprinklers are 300 psi (20.7 bar)
rated, quick-response standard spray automatic fire sprinklers
utilizing a 3.0 mm glass bulb thermal element.
Features:
Style: Upright
Threads: 1/2" NPT or ISO 7-R1/2
Maximum Working Pressure: 300 psi (20.7 bar) rated
Temperature Rating: 155°F (68°C)
Nominal K-Factor: 5.6 (80 metric)
Low profile, compact design
Sold individually.