NOS NIB Hersey FRP-II reduced pressure backflow preventer 1

NOS NIB Hersey FRP-II reduced pressure backflow preventer 1

NOS NIB Hersey FRP-II reduced pressure backflow preventer 1

This model is a reduced pressure assembly. You will notice there is a FRP & FRP II in the 3/4" and 1" sizes. The model FRP was the first introduction of this model and revisions were made which lead to the FRP II series and expansion of the sizes from 3/4"-2".


NOS NIB Hersey FRP-II reduced pressure backflow preventer 1


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