

I Have Designed Custom Plugs To Ensure Threads Are Not Stripped And To Keep Valves Lubricated. Valves With Cut Or Removed Brake Lines Can Be Corroded Or Stripped. The Plugs On The Unit Are To Prevent Contamination From Entering Into The Brake Valve And Also To Keep The Valve From Seizing Due To Lack Of Lubricant. If Any Moisture Or Debris Get Inside It Will Seize.