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NOS NIB Hersey FRP-II Reduced Pressure Backflow Preventer 1"

This model is a reduced pressure assembly with a bronze body.  It has a circular shape diaphragm pointing outward in line with the piping. All internal hardware parts are made mostly of glass filled noryl plastic. The checks are modular in construction. All seats are replaceable. A relief valve seat tool is needed to change the relief valve seat. All springs are contained when the covers are removed. The relief valve utilizes an internal sensing line.


Manufactured by Hersey Products Inc. in USA
Model FRP-II
Bronze Body
1" npt female in and out

CA Inventory # 4941

Add to Cart:

  • Cavlon Item No. 4941
  • Model: FRP-II
  • Shipping Weight: 19lbs
  • 9 Units in Stock

This product was added to our catalog on Thursday 19 November, 2015.

Please contact us at (505) 227-7709 or email

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