Bulkhead fittings are made of premium quality 304 stainless steel, which is corrosion-resistant, rust-proof, offers good ductility at high temperatures, and has low magnetic permeability, ensuring a long service life. These fittings can be mounted in water towers, water tanks, water inlets and outlets, homemade water storage containers, and rainwater collection systems. They are also compatible with various pipes, hoses, pipe fittings, and faucets. The bulkhead design allows the fitting to pass securely through holes without leakage. This multi-functional tool features a threaded bulkhead that conforms to the shape of round barrels, helping maintain clean water storage over multiple seasons. Suitable for use in home, school, factory, commercial, and industrial applications. Installation is simple: drill a hole between 68-78mm, then assemble the water tank connector and plug connector by threading from the front end. Cover the plug to prevent dirt and dust from entering the tank and keep the water clean. Features a 2-inch NPT female threaded connection. Note that NPT thread size is nominal and not the actual outer diameter; please verify dimensions before installation. Stainless steel partition joints are commonly used in water tanks, water towers, inlets, outlets, DIY water storage containers, and rainwater systems, and are compatible with various pipes, hoses, fittings, and faucets. The lock nut has a left-hand thread; the external thread is designed for securing the lock nut and cannot be connected directly to a pipe. Specifications: Size: 2 inch (5 cm) Name: Bulkhead Water Tank Fitting Material: Stainless Steel Color: Silver Package Contents: 1 x Bulkhead Fitting Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement allowance is +/- 1-3 cm.