Brake booster check valve

Just wondering which way does the brake booster check valve goes in? The side that have the letter “E” with an arrow should be the one that the hose from intake manifold go into right and the other side is to the brake booster?

nvm got it solve!

So what was the answer? I would have looked for you but my car isn’t at my house these days.

It’s all good! I was right all along :wink: the one with letter E is suppose to be the one going to manifold