This heavy-duty plastic tank bulkhead fitting is designed to create a secure and leak-proof connection in water tanks, drums, and liquid storage systems. Made from durable, corrosion-resistant plastic, it features deep internal threading for strong engagement and a square external base for easy tightening and stable mounting. The fitting includes both male and female threads depending on installation direction, making it compatible with a wide range of plumbing pipes, valves, and irrigation components. Ideal for freshwater, non-corrosive fluids, agricultural systems, and general plumbing.