Check the listing for details. 2Pcs Propane Gas Control Valve with 4 Orifice Sizes for Blackstone Griddle 1866. Condition: New, Made in China. Listed at 19.19 USD. Features: 1, Gas Control Valve Orifice Pack size include: M6 thread 1.0mm , 1.2mm, 1.5mm, 2.0mm. 2, Valve Preset with LP. You can easy change the orifice by wrench and glued to get higher BTU of your burner. 3, GAS Type: Propane (LPG) Preset, can change orifice to Natural Grill as well. 4, Compatible for Blackstone 36 Inch Gas Griddle Cooking Station 4 Burner Flat Top Gas Grill Propane. 5, Replacement Valve Kit for Blackstone 4 Burner Select 36" Gas Griddle Cooking Station in Classic Black 1554/ 1565/ 1836/ 1866. 6, Fits for Blackstone 4-Burner Liquid Propane Flat Top Grill Model #1560. 7, Easy to replace your valve: Take of the knob and take off the mouting screws on the panel, and take the valve from the gas manifold then use our valve and clamps to f.