Bulkhead Fitting Adapter: steel 304 bulkhead tank fitting with female 1/2” NPT and male 3/4" NH Garden Hose Threaded, high precision thread and no leakage. Material: 3/4 inch water tank bulkhead fitting is made of 304 stainless steel, high hardness and long life using. Embedded gasket provides strong seal without slipping. Easy to Install: A Weldless Option to add threads to any tank in seconds, you can also easily remove them to clean your equipment hassle free. Inner and outer threads on our bulkhead tank fitting allow multiple connection options. Application: The 3/4 inch bulkhead fitting can be used in water towers, water inlet and outlet, and self-made water storage barrels, which can be used for various pipes, faucets, hoses, fittings, etc.