1/4 Male Iron Pipe x 1/4 Male Iron Pipe Anti-Siphon ValveThe 1 4 Male Iron Pipe x 1 4 Male Iron Pipe Anti Siphon Valve is a specialized valve designed to prevent siphoning in fluid or gas systems. With male iron pipe threads on both ends, it connects seamlessly to female threaded fittings. It has anti siphon mechanism to ensures one way flow, preventing the system from contamination or damage caused by reverse flow. Made from quality brass providing durability and resistance to corrosion. It is compact