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Vacuum Breaker for Frost Free Hydrant Faucet

Polished chrome cap with white plastic vacuum breaker and black rubber o-ring.
Vacuum Breaker for Frost Free Hydrant Faucet - Image 2
Vacuum Breaker for Frost Free Hydrant Faucet - Image 3

chat iconWHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”
-Linda C.
03/27/2026

$9.27

 

A vacuum breaker for a frost-free hydrant is a vital safety component that acts as a one-way valve, ensuring water flows only out of the faucet and never back into your home’s clean water supply. This device prevents “backflow” or “backsiphonage,” which can occur if a drop in water pressure accidentally sucks contaminated water—such as from a garden hose submerged in a pool or a bucket of lawn chemicals—back into your potable water lines.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 77821 Category: Tags: ,

Replacement Vacuum Breaker Kit for Frost-Free Wall Hydrants – Fixes leaky outdoor taps and restores safety, preventing back-siphonage. Includes check valve, durable plunger, and tamper-resistant set screw for easy installation.

 

  • Safeguards your drinking water by blocking the reverse flow of non-potable liquids.

 

Customer submitted images. 

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“I texted him a picture of the shower part from the 50’s I needed and he was able to identify it immediately. I ordered it and it showed up in two days! Very knowledgeable and friendly! ”
-Jim F.
02/04/2026