This 5/8 in. OD, 1/2 in. ID, durable, corrosion-resistant stainless steel gas connector is configured with 1/2 in. FIP x 1/2 in. FIP adapters. Designed with safety in mind, this CSA approved gas connector is yellow coated. The yellow coating is an industry recognized color for gas lines and provides extra corrosion protection from accidental contact with harmful chemicals that may be found in household products. It is commonly used for the installation of home appliances such as gas ranges and furnaces. Designed and certified by CSA for indoor and outdoor use. 304 stainless steel. 100 % factory leak tested.