Look here for a Regulator for LPG (liquid propane gas) or CNG (compressed natural gas), or a Pressure Gauge, Adapter Hose, Pigtail, or a Brass Fitting for these gas systems, such as a Pol, Flare, Barb, Cap, Nipple, Mender, Coupler or other Adapter. 

Find other flare fittings in our plumbing section - use this link: Brass Flare Fittings