Diesel Keeper Anti-Siphon Devices protect ALL of your diesel fuel from being stolen - especially the top layer. Crafted from stainless steel - our ASD's come with an amazing lifetime warranty and free shipping in the USA. Get the product that does the job right! KINDLY NOTE: OUR ANTI-SIPHON RANGE OF PRODUCTS RECENTLY UNDERWENT A COMPLETE REDESIGN. NEW PICTURES AND PRODUCTS WILL BE LISTED THE WEEK OF DECEMBER 19, 2011. FEEL FREE TO CONTACT US TROUGH THE "CONTACT US" PAGE. WE APOLOGIZE FOR ANY INCONVENIENCE.