self draining 3/4" - hose bibb vacuum breaker main

3/4" self draining - vacuum breaker for hose bibb bottom

12 pack of self draining 3/4" vacuum breaker bulk 1

24 pack of self draining 3/4" vacuum breaker bulk 2

60 pack of self draining 3/4" vacuum breaker bulk 3

3/4" Hose Bibb Vacuum Breaker - Self-Draining diagram

3/4" Hose Bibb Vacuum Breaker diagram how it works 1

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Frost Proof Self-Draining Hose Bibb Vacuum Breaker | Lead-Free, Solid Brass

Designed for use on yard hydrants and hose bibbs to prevent the reverse flow of polluted water into the potable water supply due to back siphonage. This self-draining Lead Free hose bibb vacuum breaker will automatically drain when the water is shut off, even when attached to a hose. Now you won't have to worry about leaving hoses connected during cold weather. These protect against potential health risks and contamination in potable water. Comes complete with a breaking set screw. Once tightened set screw will break off to prevent tampering and removal.

General Information

Valve Type	Hose Bibb Vacuum Breaker
Turn Style	Quarter Turn
Construction Material	Lead Free Solid Brass

Connections & Dimensions

Inlet	3/4" FHT
Outlet	3/4" MHT
Height	2" (50mm)
Depth	1.3" (34mm)

Product Features

Max Working Temperature	180 Degrees F
Working Temperature Range	33 Degrees F - 180 Degrees F
Lead Free and Corrosion Resistant	Yes
Vandal Resistant	Tamper-Proof thread locking device
Built in check valve	1

What's Included

Item(s)	Hose Bibb Vacuum Breaker

What's Not Included?

Item(s)	Stainless Steel Removable Locking Screws: SS20

Certifications & Approvals

Safety Listing(s)	ASSE 1011 Certified CSA B64.2 Approved C UPC Approved 1 Year Warranty

Applications & Uses

Medium / Fluid	Potable Water
Markets	Commercial and Residential

Documents

Specification Sheet	Vacuum Breaker Download

Related Products

Product(s)	Hose Bibbs

We are in Sutton, Massachusetts. All orders, with in-stock items, placed before 3PM EST will be shipped on the same business day via USPS, UPS or FedEx. All orders shipping within the continental US over $25 ship free.

We do not ship outside of the US, Canada, Alaska and Hawaii. We also do not ship to APO/FPO mailboxes. We are sorry for the inconvenience!

Kingsupply.com free same day shipping transit map

Great Product, Easy Process

I was having a hard time finding a few quality Self-Draining 3/4" Hose Bibb Vacuum Breaker for my home. All the ones I purchased were either cheaply made, or were not self-draining. Then I happened across King Supply and gave it a shot. I am well pleased with the quality, and well made sturdy ones I received from them. The process was easy and shipment was quick.

Hi John,

Thank you so much for sharing your experience!

We’re thrilled to hear that you’re happy with the quality of the vacuum breakers and that the ordering and shipping process worked well for you. It means a lot to us to know that our products met your needs.

Thanks again for choosing King Supply — we truly value your support!

Vacuum Breakers

It is a joy to work with this company, everyone is so friendly and we always get prompt service.

Thank you for the kind words Peggy!!!! We appreciate you and your business with us!!! Have a great rest of your day :)

Self-Draining 3/4" Hose Bibb Vacuum Breaker Order 1 of 2

Excellent purchase! Easy to install adn worth the money. This order was so good I placed and am awaiting a second order earlier this week.

Tony B

Tony - This is the best review we've seen all week. Thank you so much for saying all of this. We're glad you're happy with your purchase and our company. Thank you for your business. We really appreciate it!

Hope it works

Frost free hose bibs getting ruined every year because hoses were not removed is a big and expensive problem . I got these self draining vac breakers to see if they would actually work to prevent damaged hose bibs . They do seem to drain the hydrant IF THE VALVE IS SHUT OFF AND THE HOSE NOZZEL IS OPENED LONG ENOUGH TO ALLOW THE WATER TO DRAIN Out .Apparently the hose will not need to be removed to prevent the hose bib from being damaged in freezing weather . [ Whether or not one needs to remove the hose itself to above freezing location to protect it is another matter .] However there is a sticker on these self draining breakers that says to keep them from freezing . So I will have to try to test that this winter .

Hi Richard!
Thank you for all of your thorough feedback, we enjoy reading it and gaining insight from all of our customers. The self draining vacuum breakers you purchased are in fact frost resistant. Unfortunately, none of our vacuum breakers are 100% frost proof, however so long as you are not in an area where you are experiencing drastic temperatures below zero for long periods of time this should work just fine for you. With that being said, you will not need to remove the hose in order for these to drain properly and resist freezing. You can absolutely leave the hose connected without running the risk of your hose bibb being ruined. It is imperative that the hose bibb is fully turned off prior to the first freeze and after ever use during cold months should you use it. It is also recommended that you remove any remaining pressure in the hose by using any sort of hose nozzle and holding the 'trigger' down until nothing else comes out of it. We do recommend that the hose is wrapped up and off the ground to prevent it from freezing due to any liquids remaining in the line, however if this is not done it should not effect your vacuum breaker or your hose bibb. I hope this helps put your mind at ease, but if you have any additional questions or concerns please feel free to reach out to us. We look forward to talking with you next spring to see how these worked out for you! Have a great week!

It works

It works

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3/4" Hose Bibb Vacuum Breaker - Self-Draining