Description
Zurn Wilkins RK4-350 Check Rubber Repair Kit for 4″ 350, 350A, 375, 375A, 450, 475 Series Backflow Prevention Devices.
Features & Benefits:
| Fits 4″ 350, 375, 450, and 475 350 and 350XL | Fits 2 1/2″ – 4″ 350A and 375A |
| Includes No. 1 and No. 2 check seal rings, o-rings, and lubricant | Lead-free law compliant |
Repairs Model(s):
- Zurn Wilkins 4-350 4″ Double Check Valve Assembly
- Zurn Wilkins 350A 2-1/2″, 3″, and 4″: 212-350A, 3-350A, 4-350A, Double Check Valve Assembly
- Zurn Wilkins 4-375 4″ Reduced Pressure Principle Assembly
- Zurn Wilkins 375A 2-1/2″, 3″, and 4″: 212-375A, 3-375A, 4-375A Reduced Pressure Principle Assembly
- Zurn Wilkins 4-450 4″ Double Check Valve Assembly
- Zurn Wilkins 4-475 4″ Reduced Pressure Principle Assembly
Includes Parts:
- (x2) 3509-12 Seal Ring (Part #23)
- (x2) 353N O-Ring (Part #16)
- (x8) WK-109N O-Ring (Part #21)
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