Looking for 4 way version of this

it's for the 'bottom end' of the leach field. If you think of a leach field as a fork, with the d-box as the handle and the tines as the perforated pipes, what's complicated things for us is that the engineer's insisted that we join the tines with a solid (not perforated) pipe, basically across the tines. At the 'inner' joins we'd need something like a 4 way tee. I suppose joining 2 of them is the best answer, thanks for that. It's really annoying we need to join them at all. At the end of each of the perforated pipe will be a 90 deg tee pointing up which is where the vent caps go.