Toro 311A-.75 Plastic Anti-siphon Valve 0.75 in

Product Description

The TORO 311A-.75 is a 3/4-inch plastic anti-siphon valve designed to prevent backflow in residential and light commercial irrigation systems. Anti-siphon valves combine a zone control valve and a backflow preventer into a single unit, stopping contaminated water from being drawn back into the potable supply line when pressure drops. At 0.75 inches, this valve suits standard lateral lines found in typical sprinkler and drip irrigation layouts. Installation is handled by licensed irrigation contractors or plumbers working on outdoor water systems.

This valve is suited for above-ground installation on residential lawn and garden irrigation systems where local code requires backflow protection at the zone level. The anti-siphon design must be installed at least 6 inches above the highest downstream sprinkler head to function correctly per standard irrigation practice. It is a practical choice for new irrigation zone installations as well as direct replacement of failed or leaking anti-siphon valves on existing systems.

Key Features

• 0.75-inch valve size fits standard 3/4-inch irrigation lateral lines
• Integrated anti-siphon design combines zone shutoff and backflow prevention in one unit
• Plastic body construction offers corrosion resistance for outdoor irrigation use
• Compact form factor simplifies installation in valve boxes or at manifold assemblies

Compatibility

Designed as an OEM-style replacement for 3/4-inch anti-siphon valve applications in residential and light commercial irrigation systems.

Installation Notes

Installation should be performed by a licensed plumber or certified irrigation technician in accordance with local plumbing and irrigation codes. Shut off the irrigation water supply fully before removing or installing the valve. The valve must be mounted above the highest downstream emission point to maintain proper anti-siphon function. Do not install this valve in a below-grade or flooded valve box where the body could be submerged.

Technical Specifications

• Connection Size: 0.75 inches
• Body Material: Plastic
• Valve Type: Anti-Siphon
• Order Increment: 1

Standard Information

• Brand: TORO
• Manufacturer Part Number: 311A-.75