Horizontal Vent Tee Orientation

[GoDillos]

I have to tie 2 vents together. The best place to do this is when they are running horizontally in the space between floors. There they will meet at a right angle. Ideally, I would use a "vent tee" for this, right? However, I couldn't find one at the big box store.

Can I use a san tee? These are dry vents. If I do use a san tee, how do I orient it? Here's a picture of how I think it should go:



Does that work? Any help would be much appreciated.

[Terry]

If the santee for the vent is six inches above the flood level, it will be fine.

[hj]

ANY tee would work there and the orientation is immaterial, although inspectors like to see them installed in the direction of flow as if air performed the same as water.