375A and 375 (2-1/2" to 10") Parts/Repair Kits

Parts Indentification

1. Bolt, Flange

2. Nut, Flange

3. Gasket, Flange

4. O-Ring, Relief Valve

5. Relief Valve Assembly

6. Bolt, Relief Valve

7. Seat Retainer #1

8. Seat Retainer #2

9. O-Ring, Seat

10. Bolt, Poppet Retainer

11. Handle, #1 Poppet Assembly

12. Washer, Poppet Bolt

13. O-Ring, Poppet Bolt

14. Poppet Retainer

15. Seal Ring

16. Seat Assembly, #1 Poppet

17. Seat Assembly, #2 Poppet

18. Sensing Tube Fitting

19. Pitot Tube Assembly

20. Sensing Tube

21. Washer, Seat Retainer

22. Gate Valve: NRS (FxF), NRS (GxG), NRS (GxF), OS&Y (FxF), OS&Y (GxG), OS&Y (GxF), Butterfly Valve (GxG), Butterfly Valve (GxF)

23. Ball Valve, FxF

24. Ball Valve, MxF

25. Cover Retainer Assembly

26. Grooved Coupling

27. Bulkhead Fitting

28. Sensing Line Bulkhead Fitting

29. Cover

375A and 375 (2-1/2" to 10") Parts/Repair Kits

375A and 375

Reduced Pressure Principle - Backflow Preventers - 375A (2-1/2" to 10") and 375 (4" to 10")

Where to Buy

Diagram #	Product Number	Description	Shop Parts
	10-BK	Flanged Kit, 10"	Where to Buy

Product Number	Description	Shop Parts
RK4-350CK2	#2 Check Assembly Repair Kit, 2-1/2" - 4" 375A	Where to Buy Buy Online
RK4-350-SEAT2-ASSY	#2 Seat Assembly Repair Kit, 2-1/2" - 4" 375A	Where to Buy
RK4-375-SEAT1-ASSY	#1 Seat Assembly Repair Kit, 2-1/2" - 4" 375A	Where to Buy
RK4-375CK1	#1 Check Assembly Repair Kit, 2-1/2" - 4" 375A	Where to Buy Buy Online
BRK4-LBF-SEAT1RTNR	Bulk #1 Seat Retainer Repair Kit, 2-1/2" - 4" 375A	Where to Buy Buy Online
RK4-350	Standard Repair Kit, 2-1/2" - 4" 375A	Where to Buy
RK212-RV375A-HOSE	Braided Hose Kit, 2-1/2" - 4" 375A RV	Where to Buy
BRK4-LBF-SEAT2RTNR	Bulk #2 Seat Retainer Repair Kit, 2-1/2" - 4" 375A	Where to Buy Buy Online

Diagram #	Product Number	Description	Shop Parts
	4-BK	Flanged Kit, 4"	Where to Buy

Product Number	Description	Shop Parts
RK6-RV375A-HOSE	Braided Hose Kit, 6" 375A RV	Where to Buy
BRK6-LBF-SEAT2RTNR	Bulk #2 Seat Retainer Repair Kit, 6" 375A	Where to Buy Buy Online
RK6-350CK2	#2 Check Assembly Repair Kit, 6" 375A	Where to Buy Buy Online
RK6-375CK1	#1 Check Assembly Repair Kit, 6" 375A	Where to Buy
6-BK	Flanged Kit, 6"	Where to Buy
BRK6-LBF-SEAT1RTNR	Bulk #1 Seat Retainer Repair Kit, 6" 375A	Where to Buy Buy Online
RK6-375-SEAT1-ASSY	#1 Seat Assembly Repair Kit, 6" 375A	Where to Buy
RK6-350-SEAT2-ASSY	#2 Seat Assembly Repair Kit, 6" 375A	Where to Buy

Diagram #	Product Number	Description	Shop Parts
	8-BK	Flanged Kit, 8"	Where to Buy

Product Number	Description	Shop Parts
RK8-RV375A-HOSE	Braided Hose Kit, 8" and 10" 375A Relief Valve	Where to Buy
RK8-350	Standard Repair Kit, 8" and 10" 375A	Where to Buy
RK8-RV-ASSY	Relief Valve Assembly Repair Kit, 8" and 10" 375A	Where to Buy
RK8-375-SEAT1-ASSY	#1 Seat Assembly Repair Kit, 8" and 10" 375A	Where to Buy
RK8-350CK2	#2 Check Assembly Repair Kit, 8" and 10" 375A	Where to Buy Buy Online
RK8-375CK1	#1 Check Assembly Repair Kit, 8" and 10" 375A	Where to Buy

The manufacturers and products listed are or may be the trademarks of their respective companies. The other manufacturers and products listed are not associated with Zurn Elkay or Zurn Elkay’s products. Zurn Elkay provides this information for general cross reference purposes only. Zurn Elkay makes no representations regarding the quality, comparability, or compatibility of any competitor products listed. All information is subject to change without notice.