Connect your gas range, furnace, or boiler with this Gas Range and Gas Furnace Flex-Line (5/8 in. OD (1/2 in. MIP x 1/2 in. MIP) x 48 in.) from BrassCraft. The connector features a corrosion-resistant coating to protect from harsh cleaning and plumbing repair products and can be used indoors or outdoors. The connector supports appliances up to 106,000 BTU.