**Notice: WGF will be closed on July 4th and 5th in observance of the holiday. All orders placed on these days will ship on the following Monday, July 8th. We apologize for any inconvenience caused. Have a happy and safe 4th of July!
The stainless steel Fill Restriction Cylinder Cap threads into the filler's Pancake Cylinder and creates a flat surface for the Low Flow Screw to press against.
Flats are machined onto the screw for easy removal.