Eastman 425412 CSA-Certified Uncoated Stainless Steel Gas Connector, 1/2-Inch FIP X 1/2-Inch MIP, 5/8-Inch OD, 12-Inch Length DIMENSIONS: 12-inch length with a 5/8-inch OD (Outside Diameter) CONNECTION: 1/2-Inch FIP (Female) X 1/2-Inch MIP (Male); Zinc-plated steel S45C fittings MATERIAL: Constructed from 304 series Stainless Steel DURABLE: Designed to withstand prolonged exposure to harsh environments for both indoor or outdoor use. Deep corrugations provide structural support against crushing, kinking, and cracking CERTIFICATION: It is CSA certified in both US and Canada