PVC bulkhead fittings are molded connectors that seal and join piping through tank or vessel walls using internal and external threads. They find application in water storage, chemical tanks, agricultural systems, and process vessels where reliable leak integrity is crucial. Available in sizes from 1/4" to 8", with reinforced threads and long or short shaft styles, these fittings offer dependable pressure handling, corrosion resistance, and simplified installation for industrial fluid systems.