Bulkhead fittings are made of premium quality 304 stainless steel, which is corrosion-resistant, rust-proof, corrosion resistant ductility at high temperatures, and low magnetic permeability, has a long service life. Can be mounted in water towers, water tanks, water inlets and outlets, self-made water storage buckets, rain buckets, and can also be used in various pipes, hoses, pipe fittings or faucets. Bulkhead design to make the fitting easy through holes without leakage. Multi-functional tool, the threaded bulkhead will contour to the shape of the round barrels, maintaining your barrel with fresh rain water season after season. It is suitable for home, school, factory, commercial and industrial use. Easy to install, you need to drill about 41-51mm hole for installation, and then assemble the Water Tank Connector and plug connector together, threaded from the front end,cover the plug to prevent dirt and dust from entering the water tank and keep it clean. 1" NPT female threaded, NPT thread size is not the actual diameter, it is only nominal pipe size. Please check the size before ordering. Note:The lock nut is Left-hand thread,and the external thread is used for the lock nut and cannot be connected to the pipe. Feature: - Bulkhead Water Tank Fittings are forged and cast from solid 304 stainless steel, which is corrosion-resistant, rust-proof and has a long service life. - Stainless steel partition joints are commonly used in water tanks, water towers, water inlets and outlets, self-made water storage buckets, rain buckets, and can also be used for various pipes, hoses, pipe fittings or faucets. Specification: Name: Bulkhead Water Tank Fitting Material: Stainless Steel 304 Color: Silver Size: Please see the second picture Package Includes: 1Pcs x bulkhead fitting adapter 1Pcs x sealing tape Note: 1.The colors may have difference as the different display, please understand. 2.Please check the specific size of the product according to the second picture before you bid. 3.Please allow 1-2mm error due to manual measurement, please make sure you do not mind before you bid.