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Vetus Air Vent Anti Syphon Device With Valve
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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 #:  305425
    Brand:  Vetus
    Model #:  ASDV
    Shipping Weight:  0.20 Lbs.
    List Price:   $79.75
    Our Price:   $64.99
    Status:      In Stock


    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


    Related Products Include  
      Vetus Air Vent Anti Syphon Device With Hose
  • 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

  • $64.99

    Item #:

    Model #:
      Vetus Air Vent Anti Syphon Device With Valve
  • Hose ID: 1-1/2", Material: Synthetic, Air Bleed Connection: Rotating
  • For Wet Exhaust Systems, Under-Waterline Heads and Waste Discharge
  • Self-Contained

  • $64.99

    Item #:

    Model #:
      Vetus Hose Connectors
  • Fits Hose ID: 1/2" - 1-1/2"
  • Material: Synthetic
  • Cut Fitting to Accommodate Desired Hose ID

  • $17.99

    Item #:

    Model #:

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