MENSI 1/4' RV Quick Connect Adapter Fitting with Elbow for Blackstone 17 Inch and 22 Inch Propane Gas Tabletop Camping Grill : Amazon.ca: Patio, Lawn & Garden
RV Quick Connect Elbow Adapter for 17" or 22" Blackstone Griddle Model #: FK-GRD-ELB-QC - Flame King
12FT Quick-Connect RV Propane Hose with 1/4" Safety Shutoff Valve and 1/4" Male Full Flow Plug, Low Pressure Quick Disconnect Propane Hose with Elbow Adapter for 17" and 22" Blackstone Griddles :
Torjik - RV Propane Quick-Connect kits, hoses and adapters
Blackstone to RV or Trailer Quick Connect - YouTube