Specifically designed to hook up to RV fuel source. Easily connect griddle directly to oversized propane tanks commonly used in RVs, caravans, and motor homes. 1/4" male quick connect and 5/8"-18 UNF adapter. Compatible with Razor models that use 20-lb propane tanks. Only compatible with Razor Griddles. The Griddle RV Adapter Hose by Razor is constructed with a heavy-duty rubber material that ensures a sealed connection. Perfect for Razor griddles that use 20-lb propane tanks. This 8’ hose is essential for cooking on the road. Designed to hook up to an RV fuel source, you’ll never have to carry a propane tank with you again.