+3 Tubing Adapter Set 5/16" Barb 400000009797 $5.49 In stock Quantity: 1 Add to Bag Product Details This is a special 1/4" nut and 5/16" barb that will attach to threaded quick disconnects or other 1/4" male flare fittings and allow 5/16" gas tubing to be attached. Stainless Steel barb with a chrome plated Brass nut. Save this product for later Favorite