




Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The AQUALINE AVB-100 is a 1-inch brass atmospheric vacuum breaker designed to prevent backflow and siphonage in potable water systems. It operates by admitting air into the supply line whenever pressure drops below atmospheric, stopping contaminated water from being drawn back into the clean water supply. The all-brass construction provides corrosion resistance and durability in both residential and light commercial plumbing installations. Licensed plumbers and irrigation technicians install this device as a code-required backflow prevention measure at hose bibs, irrigation heads, and similar connection points.
The AVB-100 is suited for hose-connected equipment, lawn irrigation systems, utility sinks, and other potable water outlets where backflow prevention is required. It installs on the supply side of the outlet, downstream of any shutoff valve. The 1-inch connection size covers a common range of residential and light commercial piping configurations. No special tools beyond standard pipe wrenches and thread sealant are typically required for installation.
Designed as an OEM-style replacement or new-installation atmospheric vacuum breaker for 1-inch threaded potable water supply connections in residential and light commercial plumbing systems.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve line pressure before installation. The AVB must be installed vertically with the bonnet pointing upward and positioned at least 6 inches above the highest downstream outlet as required by most codes. Do not install a shutoff valve downstream of the AVB, as this will prevent proper operation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!


