The Western Star Leak Defender And Anti-Siphon is a practical and reliable solution for preventing fuel cap leaks and fuel theft. This 3-piece fuel tank adapter system includes a collar, fuel cap, and anti-siphon tube, all designed to fit most Western Star makes and models. Made in the USA, this product is built to last and effectively stops fuel cap leaks while also deterring fuel theft. With its high-quality construction and easy installation, the Western Star Leak Defender And Anti-Siphon is a must-have for anyone looking to protect their fuel tank and prevent costly leaks and theft.