The Leak Defender® anti-siphon can only be used in conjunction with the Leak Defender® for Western Stars fuel tank neck repair/replacement system. It is quick and easy to install…just drop it into the OEM fuel neck and screw on the Leak Defender® replacement fuel neck. It’s superior to the basic anti-siphon on the market as it features a thick, tamper-resistant 6061 aircraft aluminum barrier and features vents just big enough to allow rapid fueling yet small enough to keep fuel thieves from siphoning off your diesel.
NOTE: Sold individually, not as a pair. Will not work on OEM fuel neck.