http://www.dhgate.com/store/product/2016-dualiti-ti-qtz-titanium-quartz-hybrid/270582512.html
It's for a flat coil e-nail mostly. If you are just using a torch I would say stick with a banger as the airflow is not much more than that. If you have a flat coil I have to say buyer beware as there is variation in quartz dish size which could cause the coil not to fit.
The retaining nut from that nail fit on an old infiniti copy I had so I have been using that as a base as it should keep the joint cleaner due to being direct inject. I would recommend ordering it as well to make sure your coil fits as you can adjust the dish supporting the flat coil. Reasonably sure this is the same nail but I got mine through Auber over a year ago so the threading could be different (I doubt it but might as well warn you anyways).
http://www.dhgate.com/product/wholesale-universal-domeless-titanium-nail/240912559.html
One other slight con is the dish has a decent diameter so a lot of carb caps don't fit great.
Or if you want slightly better quality control and USA titanium and are willing to pay a bit more check out New Vape's quartz hybrid nail. Pretty sure they have the quartz made in China and do the titanium themselves. Depending on how you configure it it starts at about 70 bucks.
http://www.newvape.com/hybrid-quartz-nail/
If you are using a torch I would also recommend one of these knock-off grails as they can be easily capped with a marble or anything flat and glass. The slit also makes for excellent airflow. This seller only seems to have female jointed ones, but if you search quartz grail on dhgate other sellers have male ones. Just make sure you pick the right kind as the hyman grails don't look nearly as nice.
http://www.dhgate.com/store/product/2016-new-female-domeless-quartz-banger-nail/270484747.html