Midline Valve Frost-Free Sillcock 6" Chrome-Plated Brass, Lead-Free with Integral Vacuum Breaker

This sillcock combines frost protection, backflow prevention and flexible installation choices in a single durable fixture. Built from chrome-plated brass and rated for 150 WOG, it accepts either a 1/2" MIP threaded or 1/2" sweat (solder) inlet and supplies water through a standard 3/4" MHT hose outlet. UPC and NSF certifications confirm compliance with common plumbing standards while the lead-free construction addresses health-conscious installations.

How does the frost-free design reduce frozen pipes and leaks?

The frost-free configuration places the shutoff mechanism several inches inside the heated interior wall so water drains from the exposed spout after shutoff. This minimizes standing water inside the exterior portion of the valve where freezing occurs and helps avoid split fittings or hoses.

• 6" stem length keeps the valve seat inside conditioned space.
• Spout and tube slope outward to encourage drainage after use.
• Chrome-plated brass resists corrosion that can lead to leaks.

What prevents backflow and why is the integral vacuum breaker useful?

The integral vacuum breaker built into the sillcock stops contaminated water from siphoning back into the home’s potable supply. This passive device activates when negative pressure is detected and is a compact alternative to separate backflow assemblies.

• Integral vacuum breaker eliminates need for external backflow hardware.
• Protects potable water from garden chemicals and standing-hose contaminants.
• Designed for standard outdoor usage and passive operation—no separate power or maintenance line required.

Which inlet and outlet options does this sillcock support for installation?

Midline designed this sillcock to accept either a 1/2" MIP threaded inlet or a 1/2" sweat (solder cup) connection so installers can choose threaded or soldered supply lines. The outlet is a 3/4" male hose thread (MHT), compatible with garden hoses, sprinklers and irrigation adapters.

• 1/2" MIP or 1/2" sweat inlet for flexible plumbing ties.
• 3/4" MHT outlet fits standard hoses and accessories.
• 150 WOG pressure rating suits most residential supply systems.

How durable is the finish and what certifications does it carry?

The chrome-plated brass body combines the mechanical strength of brass with a polished finish that resists tarnish and weathering. The unit is lead-free and carries UPC and NSF approvals, making it suitable for code-compliant residential and light commercial installations.

• Chrome plating improves corrosion resistance and appearance.
• Lead-free construction for safer potable water connections.
• UPC/NSF listed and rated 150 WOG for performance reliability.

Who is this for: The Midline Valve 6" frost-free anti-siphon sillcock is intended for homeowners, plumbers and contractors who need a reliable exterior faucet that prevents freezing and backflow while offering flexible inlet connections. It’s well suited to new builds, remodeling projects and replacement installations where code compliance, durability and a polished chrome finish matter. If you want a low-maintenance outdoor spigot that protects indoor plumbing and is ready for standard hoses and irrigation, this sillcock is an effective choice.