Yeah, they have the regular stock stem style GonG stems, that are just like the stock stem, only w/ the GonG attachment (flat on the end of bowl, no air vents) which are on the site now.
The PVHES GonG has the air channels, and slits cut around the edge of the bowl, so more air can get in, giving much easier air flow, much less restricted. Those are the ones we are waiting for. I've been using my regular sized PVHES stem w/ a TV glass attachment which luckily fits inside the stem, so having the PVHES GonG would complete my set up for sure.