Fisher 3990 1/2" M Inlet Atmospheric Vacuum Breaker
- SKU:
- 3990
- MPN:
- 3990
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Fisher 3990 1/2" M inlet atmospheric vacuum breaker prevents backflow by isolating contaminated water from potable systems. It installs on faucet inlets for reliable protection in commercial kitchens and plumbing assemblies.
- Meets potable water standards
- Compact design saves space
- Simple installation for quick service
- Atmospheric vacuum breaker for backflow prevention
- Corrosion-resistant for long service
- 1/2" M inlet fits standard plumbing connections

























