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Front view of Irritrol 2709PR 1-inch manual anti-siphon irrigation valve showing flow-control screw and bonnet assembly, beige PVC body.

Irritrol 2709PR 1 in. Manual Anti-Siphon Irrigation Valve

Brand: Irritrol
Save 28%
$42.05
$30.48
SKU 2709PR
In Stock (20)

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The Irritrol 2709PR is a 1 in. manual anti-siphon valve from the 2700 Series designed for dependable residential irrigation zone control. It pairs an integrated atmospheric vacuum breaker with manual shutoff and a tamper-resistant flow-control mechanism so you can fine-tune zone flow while preventing back-siphonage into the potable supply.

  • Reliable anti-siphon protection: Built-in atmospheric vacuum breaker prevents backflow when installed to manufacturer guidelines.
  • Precise flow control: Tamper-resistant flow-control screw lets you adjust downstream flow for consistent sprinkler performance.
  • Durable construction: Heavy-duty, UV- and corrosion-resistant PVC body with stainless-steel components and a Santoprene® double-beaded diaphragm for long service life.
  • Performance range: Operates from 0.25 to 30 GPM and is rated for 10–150 PSI, suitable for typical residential systems.
  • Serviceable design: Threaded/self-aligning bonnet and captured screws allow fast servicing without removal from the line.
  • Compact dimensions: Approximately H 5 1/16" × W 3 1/8" × L 6 1/4", sized for standard 1 in. irrigation piping.

The 2709PR is available in manual models for simple zone isolation and is also offered in electric variants across the 2700 family. It is intended for above-ground installation as an anti-siphon device and is not designed to be buried or used as a mainline backflow assembly. A five-year limited warranty and supporting documentation (Sell Sheet, Installation Guide, Specification Sheet) are published by the manufacturer for designers and installers. Consult local codes and the installation guide before fitting to ensure correct height and orientation for anti-siphon operation.

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Frequently Asked Questions

What connection size and thread does the 2709PR use?
The 2709PR is a 1 in. model with a 1 in. threaded inlet (FPT). Verify fitting type and thread compatibility before installation.
What flow and pressure ranges does this valve support?
Flow range is 0.25–30 GPM and operating pressure is 10–150 PSI, suitable for most residential zones.
Can I bury the anti-siphon valve or install it underground?
No. Anti-siphon valves must be installed above ground and at least 6 inches above the highest outlet; consult local codes and the installation guide.