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Vetus Air Vent Anti Syphon Device With Valve

Vetus Air Vent Anti Syphon Device With Valve

  • Fits Hose ID: 1/2", 3/4", 1", and 1-1/4"
  • For Wet Exhaust Systems, Material: Synthetic, Air Bleed Connection: Rotating
  • Self-Contained
  • Item #: 
    Model #: 


    Shipping Weight: 
    0.20 Lbs.
    List Price: 
    Our Price:
    Status:    null In Stock

    Quantity : 


    The Vetus anti syphon device helps to prevent cooling water from siphoning back into the exhaust and ultimately into the engine when it is off. This is critical on boats where cooling water is injected into the exhaust less than 6 inches above the waterline.

    Vetus Exhaust System Information


    • Siphoning may be prevented by fitting the air vent at least 40 cm (15.75") above the waterline
    • The air bleed connection rotates 360° for an easier installation and can be removed without the use of tools
    • Can be easily dismantled by hand for cleaning
    • This version has a reliable anti-siphon pressure valve and is self-contained(periodic maintenance is required to prevent clogging with salt crystals)
    • Also suitable for use with under waterline head intakes


    • Fits hose ID: 1/2", 3/4", 1" and 1-1/4"
    • Width: 3.79" (96 mm)
    • Thickness: 2.68" (68mm)
    • Height: 5.24" (133mm)

    Note: Mounting bracket available separately


    Imperial dimensions are approximate. The manufacturer built this product to metric specs.


    Vetus Air Vent Anti Syphon Device With Hose
    Item #: 305427
  • Fits Hose ID: 1/2", 3/4", 1", and 1-1/4"
  • For Wet Exhaust Systems, Material: Synthetic, Air Bleed Connection: Rotating
  • Includes: 13' of Hose, Hose Clamps and Skin Fitting
  •  Include
    Model #:
    Vetus Air Vent Anti Syphon Device With Valve
    Item #: 305429
  • Hose ID: 1-1/2", Material: Synthetic, Air Bleed Connection: Rotating
  • For Wet Exhaust Systems, Under-Waterline Heads and Waste Discharge
  • Self-Contained
  •  Include
    Model #:
    Vetus Stepped Hose Connector
    Item #: 305431
  • Applications: Hose ID: 1/2" - 1-1/2", Material: Synthetic
  • Function: Securely Joins 2 Hoses with Different IDs
  • Cut Stepped Fitting to Accommodate Different Hose IDs
  •  Include
    Model #:

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