Shouldn't there be a left and right 3-way corner? | Creative Shelters FAQ

Shouldn't there be a left and right 3-way corner?

No. On the 3-Way fittings, P3, MP3, and HP3, the fittings universally fit the left and right corners.  If you find the 90 degree angle, and hold the piece that looks like it has been welded on last, you can then rotate the fitting for either the left or right side.