Viking Recessed NP-3 Thread On Seismic Escutcheon - Available In Multiple Colors And Head Sizes Head Size:1/2 Inch NPT JL Classic Series Surface Mount

JL Classic Series Surface Mount Fire Extinguisher Cabinet - Available In Multiple Sizes

3/4 Inch NPT:  VK2021 VK3521

Safe Signal WFD20EXP 2" Explosion Proof Waterflow Switch

DC Max Op Current:  ​see Data Sheet for complete current draw information​

Safe Signal PSP1 Supervisory Tamper Switch

Viking Recessed NP-3 Thread On Seismic Escutcheon - Available In Multiple Colors And Head Sizes Head Size:1/2 Inch NPT JL Classic Series Surface MountViking Recessed NP 3 Thread On Seismic Escutcheon Available In Multiple Colors And Head Sizes Inside Diameter 2 1 16" Outside Diameter 5 1 8" Depth 1 1 16" Available In The Following Colors And Fire Sprinkler Head Sizes: 1 2 Inch NPT Chrome White 3 4 Inch NPT Chrome White Head Size: NPT stands for National Pipe Thread. To determine what size sprinkler head you have, measure the bottom of your sprinkler head at the base of the threads. The 1 2" fire