When you buy AISI 4130 High Pressure Manifold Fittings, you want to be confident that it will perform as you expect. Thats why standardization systems are so important. They let us know that what were getting is what we think were getting, and that it wont let us down. This is especially crucial when the consequences of a product failing are direlike in an engineering project. The piping industry relies on standards. The AISI 4130 High Pressure Manifold Fittings are manufactured to sustain very high pressure and product warranty.