Skip to content Skip to navigation menu
Irritrol 311A Glass-Filled Nylon Anti-Siphon Valve 3/4 in. FIPT with Flow Control
Not in stock at your selected location. Call us at 1-800-748-3663 for availability.

List price

$56.00 / Each

Log in to see your price
Add to list


Landscapers can depend on the 3/4 Anti-Siphon Valve With Fc Irritrol to safely throttle or direct flow. This valve features a glass-filled nylon build, providing a favorable thermal expansion rate for increased stability when exposed to temperature fluctuations. It comes with a nylon-reinforced Buna-N diaphragm, ensuring excellent tear strength, abrasion resistance, and stability for long-lasting use. This valve has an internal and external bleed, making system flushing efficient and dependable. With an externally removable self-cleaning metering system, this valve blocks the entry of physical contaminants for efficient performance and added longevity.

  • Internal and external bleed (flush mode)
  • Rugged, double-beaded nylon-reinforced Buna-N diaphragm
  • Externally removable self-cleaning metering system
  • Accepts OmniReg modular pressure regulator
  • Upper body and air-vent cap constructed of glass-filled nylon


Item Anti-Siphon Valve
Connection Type FIPT
Connection Size 3/4 in.
Body Material Glass-Filled Nylon
Includes with Flow Control
Regulated No
Brand Name Irritrol

Prices may vary from branch to branch and online. Branch is not responsible for the errors or omissions in pricing and quantity. Suppliers of the products listed on this Web site are subject to change at any time. While the individuals and entities responsible for this catalog attempt to provide accurate supplier information, for these reasons and others, the suppliers noted may not be the supplier of the product ultimately sold by SiteOne or distributors of products.