Propane adapter for GBB Nov 16, 2010 11:02:00 GMT 8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by BumbleBee on Nov 16, 2010 11:02:00 GMT 8 I've heard that Green Gas is better than 134a or much safer than Red Gas for ABS GBBs.Meron ba dyan na marunong gumawa nito? It's a propane tank adapter for GBBs.This is how it looks.