yes it is. I used the mounting location of the tank cover to attach the diffuser to the bottom of the tank. Its always easier and clients are always happier when they can use their original hardware and pre existing mounting locations.
Looks like somebody maybe using your image to scam people…
Someone sure is. It looks like a few of those pics are stolen/ borrowed. Im flattered that my work can set the standard of expectations for the future of people getting ripped off on eBay.