48" Stainless Flex Hose. To connect your RCS built-in gas grill to your natural or propane gas supply the RCS 48-inch flex hose is needed. The hose has a + inch female pipe thread on one end and a + inch male pipe thread on the other. Stainless Steel, 48" Long, 106,000 BTU Capacity, 1/2" Female Flare Fittings on Hose with 3/8" adapters. This product ships in approximately 1 days