Pipe Fitting: 3/8" flare M x 1/8" MNPT. 1 x Adapter(3/8" flare M x 1/8" MNPT). FULLY TIGHTENED at both propane tank side and grill side before using on your propane appliances to prevent leakage. Defeat ordinary rubber that ages in the sun, provides secure, airtight connection between grill and turkey fryer or burner and tank.
eBay