1, 1/2" OD x 3/8" ID 36 inch long stainless steel non-whistle corrugated flexible flex gas line in black coating. 2, Additional accessories: 1set threaded tape, 3/4"-16 UNF flare male to 1/2" male NPT (Female tapped 3/8In female NPT ) fitting , 3/4"-16 NUF flare male to 1/2 "female NPT thread adapter Fitting for customer connection convenience. 3, The bellows is made of durable stainless steel materials, with excellent flexibility, high and low-temperature resistance, and there is a staggered pitch every 2" to eliminate whistling. 4, CSA certified non-whistle flex lines with 1/2" male female converter fittings,perfect for NG or LP fire pit, fireplaces, gas water heater, Gas stove, gas roasting machine. 5, Easy to use, .
eBay