This is one of the older model co2 electronic regulators, basically the exact same as the “carbon doser” ones aquariumplants.com sells. Works just fine, see pics, has some insulation or something in the back. Doesn’t affect anything. Works as it should, best regulators on the market, worry free.
$250 shipped
also have a 10# co2 tank I’d be willing to empty and ship as well.
$250 shipped
also have a 10# co2 tank I’d be willing to empty and ship as well.