That problem has been resolved. The earlier model had a nylon seat. We have a stainless replacement for that seat. If you send me your address on PM we will send you one.
We sell many of the integrated argon/valve systems since it was introduced by Abyss over 18 mos ago. While Abyss is now gone. Tech Diving Limited services those prior units as a courtesy and we continue to sell the product without interuption.
The key to this unit is that it's always on, is set at a low IP to prevent runaway inflators and is extremely compact. We have added a new fill adapter that can be used with a standard scuba whip which makes filling and transfilling a breeze.
New photos will be on the website in a few days on the new filler unit.
Thanks