350A (2-1/2" - 10") and 350 (4" - 12") Parts/Repair Kits

Parts Indentification

1. Bolt, Flange

2. Nut, Flange

3. Gasket, Flange

4. O-Ring, Cover Plate

5. Cover Plate

6. Bolt, Cover Plate

7. Seat Retainer #1

8. Seat Retainer #2

9. O-Ring, Check

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. Washer, Seat Retainer

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

20. Ball Valve, FxF

21. Ball Valve, MxF

22. Cover Retainer Assembly

23. Grooved Coupling

24. Bulkhead Fittings

25. Sensing Line Bulkhead Fittings

26. Cover

350A (2-1/2" - 10") and 350 (4" - 12") Parts/Repair Kits

350A and 350

Double Check - Backflow Preventers - 350A (2-1/2" to 10") and 350 (4" to 12")

Where to Buy

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

Diagram #	Product Number	Description	Shop Parts
	12-BK	Flanged Kit, 12"	Where to Buy

Product Number	Description	Shop Parts
BRK4-LBF-SEAT1RTNR	Bulk #1 Seat Retainer Kit, 2-1/2" - 4" 350A	Where to Buy Buy Online
RK4-350	Standard Repair Kit, 2-1/2" - 4" 350A	Where to Buy
RK4-350CK1	#1 Check Assembly Repair Kit, 2-1/2" - 4" 350A	Where to Buy Buy Online
RK4-LBF-SEAL-RTNR	Poppet Retainer Repair Kit, 2-1/2" - 4" 350A	Where to Buy
BRK4-LBF-SEAT2RTNR	Bulk #2 Seat Retainer Kit, 2-1/2" - 4" 350A	Where to Buy Buy Online
RK4-350CK2	#2 Check Assembly Repair Kit, 2-1/2" - 4" 350A	Where to Buy Buy Online
RK212-350-COVERPLATE	Cover Plate Repair Kit, 2-1/2" - 4" 350A	Where to Buy

Diagram #	Product Number	Description	Shop Parts
	RK4-350-SEAT2-ASSY	#1 & #2 Seat Assembly Repair Kit, 4" 350A	Where to Buy
	4-BK	Flanged Kit, 4"	Where to Buy

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

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

Product Number	Description	Shop Parts
RK8-350CK1	#1 Check Assembly Repair Kit, 8" - 12" 350A	Where to Buy Buy Online
RK8-350-SEAT2-ASSY	#2 Seat Assembly Repair Kit, 8" - 12" 350A	Where to Buy
RK8-350CK2	#2 Check Assembly Repair Kit, 8" - 12" 350A	Where to Buy Buy Online
RK8-350-SEAT1-ASSY	#1 Seat Assembly Repair Kit, 8" - 12" 350A	Where to Buy
RK8-350	Standard Repair Kit, 8" - 12" 350A	Where to Buy
RK8-350-COVERPLATE	Cover Plate Repair Kit, 8" - 12" 350A	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.