Norwesco 4" Double Threaded Polypropylene Bulkhead Fitting

The 4" Double Threaded Norwesco Polypropylene Tank Bulkhead Fitting is an easy to install and highly versatile storage tank fitting. It is great for use in a wide variety of applications, including rainwater harvesting, well water storage, cannabis growing operations, agriculture, reverse osmosis systems & more. 5 3/4" Hole Size