Adjust New Fill Valve Height

What happens here

Take the new Fluidmaster fill valve. Locate the critical level line (C.L.) on the grey plastic stem. To adjust the height, pull up on the plastic ring located on the stem and extend or retract the stem until the C.L. line is approximately 1 inch above the top of the flush valve overflow tube. Once the desired height is set, push the plastic ring back down to lock the adjustment. Additionally, ensure the blue float cap on top of the valve is positioned so it will not interfere with the movement of the toilet flush handle once installed.

Goal: Set the proper height for the new fill valve