Viking Recessed NP-3 Thread On Seismic Escutcheon - Available In Multiple Colors And Head Sizes Head Size:1/2 Inch NPT 3/4 Inch NPT: VK2021 VK3521

3/4 Inch NPT:  VK2021 VK3521

Robust Construction:  The PIBV2’s rugged housing is intended for indoor and outdoor use

schedule 7 through 40​

5" Waterflow Detector Switch

½ HP @ 125/250 VAC 2

Viking Recessed NP-3 Thread On Seismic Escutcheon - Available In Multiple Colors And Head Sizes Head Size:1/2 Inch NPT 3/4 Inch NPT: VK2021 VK3521Viking 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