AquaticMagic is sketchy
Like Epicfish said contact Mike. He's a very nice guy & im sure he will makes it right on you if you have a faulty one.I've bought from them with no problems. Of course it was diffusers and plants and not a regulator.
Contact Mike and see what he says. Maybe he can send you a replacement? Or if you can, get a refund and then buy a JBJ/Milwaukee/Rex regulator.