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Vacuum Breakers (2)

LDR Industries 3/4 in. IPS x 3/4 in. Hose Thread Outlet Brass Sillcock Valve

LDR Industries 3/4 in. IPS x 3/4 in. Hose Thread Outlet Brass Sillcock Valve

$16.99

$16

.99

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Frequently Asked Questions About Vacuum Breakers

A vacuum breaker vents air into a plumbing line when pressure drops, which cuts off any backward pull before contaminated water can reach the clean supply.
A vacuum breaker uses air to break suction, while a backflow preventer relies on internal check valves and is built for pressurized systems that need continuous mechanical protection.
It’s important to know that brass and bronze resist corrosion and handle outdoor exposure without degrading the way weaker materials do. That long-term performance reduces how often a vacuum breaker needs to come out of service for repair or replacement.

Vacuum Breakers

A drop in water pressure can reverse the flow in your plumbing line, pulling contaminants from hoses or connected equipment back into the clean supply. Vacuum breakers stop that from happening by venting air into the pipe the instant pressure falls. Put a reliable system in place with Tractor Supply's plumbing selection, spanning a range of hose connection formats, pressure assemblies and specialty options.

Protect Your Water Supply

Vacuum breakers are small valves that do important work behind the scenes. When pressure drops, the breaker opens and lets air in, which breaks the suction that would otherwise pull contaminated water backward toward the main supply. Outdoor spigots and hose connections are typical installation points, though any spot with a contamination risk qualifies.

Multiple Connection Formats

Connection format varies by the job. Hose bibb models use female hose thread (FHT) inlets and male hose thread (MHT) outlets, which makes them the default fit for garden faucets and outdoor taps. Pipe-mounted options come in female national pipe thread (FNPT) and male national pipe thread (MNPT) formats, which thread directly into fittings for a fixed install. Self-draining versions clear standing water from the unit after each use, which matters in climates where pipes freeze.

Pressure Vacuum Breaker Assemblies

Irrigation lines and high-demand water systems move water at pressures a standard hose bibb breaker isn't built for, so they require a full assembly. Pressure vacuum breaker assemblies mount directly at the pipe and come in sizes to match residential and light-commercial supply lines. Anti-siphon models include an air inlet that fires if the outlet end — a buried irrigation head, for example — becomes submerged, stopping that standing water from being drawn back into the clean supply. Union ball valve configurations put isolation valves on both sides of the assembly, so the unit can be removed for service without shutting down or draining the line.

Specialty Vacuum Breakers and Repair Parts

Some vacuum breaker applications fall outside standard hose or irrigation setups. Hand showers connect through tubing and hoses and take in-line vacuum breakers in national pipe thread (NPT) sizes. Toilets and urinal fixtures need breakers designed and rated for those specific uses. Rather than replacing an entire assembly, repair and service kits let you swap out individual components, such as seals and check valves, to get your unit working again.

Find Vacuum Breakers at Tractor Supply

Keep potable water clean in a variety of plumbing setups by trusting our selection of vacuum breakers — a crucial device that prevents the backflow of contaminants. Explore our vacuum breakers and home improvement products at your local Tractor Supply store or on our website.