Hi guys,
I have an M48 mask and used it with the Meg. I never dove an Inspo but the M48 should fit any DSV out there. If your DSV comes with a mouthpiece, all you have to do is remove it and replace it with the mask's pod and custom mouthpiece. Here's a link with some photos, see post#7. My mask is still available if anyone wants to buy it (two dives on it).
http://www.rebreatherworld.com/rebre...k-for-meg.html
Tibby