Quick Summary
The RK12-420 is a PVB repair kit for Zurn Wilkins 420 and 420XL 1/2″ and 3/4″ pressure vacuum breakers. It is positioned as a repair solution for replacing internal components without replacing the entire body.
The kit is centered on component replacement for the matching 420 and 420XL models. Before choosing an offer, confirm the model and size match your existing pressure vacuum breaker.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | PVB repair kit for pressure vacuum breakers. |
| Model fit | Fits Zurn Wilkins 420 and 420XL models. |
| Size fit | For 1/2″ and 3/4″ PVB models, so the size should match your existing unit. |
| Kit contents | Includes 421-180 Seat Assembly, 421-340 Float Assembly, 421-20 Bonnet, 034N Bonnet O-Ring, lubricant, canopy, and screw. |
| Repair approach | Lets you replace key internal components instead of replacing the full pressure vacuum breaker body. |
What to Compare Before Buying
- Model match: This kit is for Zurn Wilkins 420 and 420XL units. Confirm your exact model before ordering.
- Size: Check that your pressure vacuum breaker is the 1/2″ or 3/4″ version covered by this kit.
- Included parts: Compare the listed assemblies, O-ring, lubricant, canopy, and screw with the parts you need to replace.
- Repair scope: This is a repair kit, so it is meant for component replacement rather than a full body replacement.
Before You Decide
Confirm the exact 420 or 420XL model and the 1/2″ or 3/4″ size before choosing an offer. Review the included parts against the components you plan to replace, especially if you need a complete assembly instead of a repair kit.
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