I search and could not find the answer. I would really like to stay away from the box within a box design. I was wondering if anyone has found a shower drain or other pvc product that will accomidate the pro triplet. Please let me know. Thanks.

No one knows?

I've looked and have been unable to find one, and to my knowledge, nobody has found anything as simple and elegant for the pro triplet as the drain is for the standard triplet.

I'd love to have a handy answer for this myself.

I've been researching and I've found a few examples that folks have offered here (can't find them now, think the Search doesn't like me today), and so far the box-in-a-box method looks the most promising. There was one that looked great to me that used two pipes, and inner pie to hold the lens, and an outer pipe that would be fixed to the enclosure. The person that submitted that one had cut a diagonal slot in the outer pipe and used a rod of some kind mounter perpendicularly to the inner pipe to turn and move the inner pipe. Very clever, I thought, but I'm not describing it well. I'd like to know what kind and size of pipes he used for his so I could emulate.

Oh well, looks like I get to remake the front panel this weekend.

I have been to many stores with Pro lens in hand trying to come up with some thing.

If somebody give me the out to out dimensions that it would need to fit in i can see if my dad has any ideas as he works for a pipe and supply company they have all sorts of crazy stuff there.

The diameter of the pro lens is 111 mm.
All the dimensions are in this post
I'm finally making progress on my PJ, and I just built the lens holder/focusing assembly tonight. It's basically a "box-in-box" design with drawer sliders. Of course I measured at least twice and still made the inner box too big to fit, so I'll have to trim it a bit next time I get to work on it.