Where can the E101627 Manifold's be bought, found, located, etc, etc?

i just received my new manifold and upon removing the old one, i see the input hose on the opposite as you state. the new unit is confidgured the same way as the old (there is a plug, on both units, on the side you have labeled input). are these coming from the factory incorrectly configured? I just ran the unit to 150lb and let it sit for 5 minutes and i am maintaining pressure. thoughts? thanks