2.Machined aluminum cover,Screws onto top of tank regulator.
Screw it on and you don't have to worry about dinged up threads or dust and debris getting into the pin valve.
When air tanks are being stored or transported simply screw on Thread Guard to ensure the compressed air regulator and C02 tank threads stay protected from damage.
5.Equipped with thread protection devices, two spare O-rings are securely installed at the top to cope with unexpected moments of oil tank O-ring breakage in the paint field.