A. [High Compatibility] The 2 pcs grill gas control valves are compatible for Blackstone 36 inch 4 Burner 1554 1565 1836 1866 gas griddle cooking station for Blackstone 2 Burner 1517 1651 gas griddle cooking station, compatible for Blackstone 4 Burner liquid propane flat top grill model 1560 B. [Solve Your Problems] The griddle griddle replacement parts, with low working pressure max 1/2 PSI can successfully help you solve the problems about failing to control the flame on, off and adjust; Replace your old griddle parts is more cost effective than purchasing a new grill griddle C. [Premium Material] The grill griddle replacement are made of standard aluminum and zinc alloy, with heavy duty construction for durability and longevity D. [Easy to Install] Remove gas rail from the griddle body, then replace the griddle gas valve parts, please ensure a good sealing with the gasket of the griddle control valve E. [Warm Reminder] The suitable gas type is natural gas, liquefied petroleum gas, propane (LPG); Please check the grill model before purchase; If you have any problem, please feel free to contact us F. Colour:Photo Color G. Material:Metal H. Package Contents: I. 2x Griddle Burner Control Valve J. Only the above package content, other products are not included. K. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.