Retrofit Recessed Escutcheon Steel Split - Available In Multiple Colors And Sizes- W913
Inside Diameter: 1 7/8"
Outside Diameter: 2 15/16"
Depth: 1 1/8"
Previously Part # ERF. Used to replace escutcheons without having to drain the sprinkler system.
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 sprinkler base measures at 3/4". The 3/4" fire sprinkler base measures at 1".
WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov