RASCO/Reliable® R1023, Model G, Upright, 4.2K, SR, 1/2" NPT, Brass, 212 Degree, GU27B, 5121112899, Fire Sprinkler Head 51-887-1-155 Overall Width: 8 1/4 inches

Overall Width:  8 1/4 inches

Model F1RES 30 LL CCP

Refer to NFPA 72 and 90A for additional duct smoke detector application information

Available in the following sizes:

RASCO/Reliable® R1023, Model G, Upright, 4.2K, SR, 1/2" NPT, Brass, 212 Degree, GU27B, 5121112899, Fire Sprinkler Head 51-887-1-155 Overall Width: 8 1/4 inchesReliable Model G Series sprinklers are standard response standard spray automatic sprinklers using a solder capsule thermal element. The solder is captured in the cylinder of the capsule by a stainless steel ball. When the solder melts, the ball moves into the cylinder allowing the thermal element to fall away from the sprinkler. When this occurs, the compressed strut and lever spring free from the sprinkler. System pressure then clears the waterway