Save space and simplify setup with the Propane-Chain System. Connect your Blackstone OTG cooking unit directly to a single propane tank, then use the adapter hose to link another compatible unitâfueling both from one source. The Propane-Chain Adapter Hose lets you pack lighter and free up space for other camping essentials.• 3â Propane-Chain⢠hose connects multiple cooking units to a single propane tank• Compatible with Blackstone OTG 20" Camping Griddle or 14â Camping Griddle with Side Burner• Can be chained to the OTG Single Burner Camping Stove or Portable Camping Airfryer Easy connection â Simple setup between compatible units Versatile use â Works with griddles, burners, and airfryers Durable 3â hose â Built for outdoor cooking conditions