I bought these off the forum a year ago and never really used them. They could probably use a good cleaning. Bulkhead is plugged but has a space for a smoke grain. Note- you'll have to source your own nozzles, snap rings, nozzle washer for these. 55$ for them, which includes shipping in the US. I accept paypal, or I'm at most of the Bong/QCRS launches. PM me if interested.