Anti-Siphon Requirements

Please download our Anti-Siphon device requirements PDF file.
Click here to download

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US Neck Size Guide

US Neck Size Guide
NeckIt® PDF Print E-mail

Anti Siphon USA

NeckIt! ® Anti Siphon Device
Models to fit all US Trucks - More than 100,000 Sold!

Neck-It! ® saves your fuel from being stolen by organised, opportunistic thieves and regular small scale skims. Use  Neck-It!® and quite simply, once your fuel is in, it can't be removed.

NeckIt!® The Worlds Best Anti Siphon Device

  • Stops Siphoning Right to the top of the Tank
  • Rapid Fit in 2 Minutes
  • No Glueing
  • No Drilling
  • No Damage to Tank Neck
  • No Splashback/No Welling
  • Tested to 120 litres/min (50 gallons/min for US High Flow Pumps)
  • Bayonet & Screw Fittings Available
  • Interchangeable Between Vehicles
  • 3yr Guarantee
  • Withstands Serious Attacks
  • Customs Compliant

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