Olympus GEL SILICA 5PC SMALL

Actually I have a Casio camera and the underwater case and could not find anywhere spare parts (silica) for my case, so I found the Olympus one, which fits well to the Casio case. The only issue is that this is a quite expensive product. It is just silica, which comes from free in most products and Adorama has charged it as it was gold.

While the packets are only supposed to work once I have been able to use the same silica packet over and over and haven't had any fogging trouble yet. I haven't tried the housing without the silica yet, but for a dollar or whatever these cost it seems worth it to me.