It is a genuine OEM sourced part which is specially designed for use with Bostitch air compressors. The regulator attaches to the joint and the pressure gauge. During replacement, it may require a wrench set to help install this item correctly. It is made out of metal and plastic and will need to be replaced if it breaks. This is available as an individual replacement part.
The oil dipstick attaches to the crankcase cover. This authentic item is supplied directly from the original equipment manufacturer for use with air compressors made by Bostitch. Keep in mind this high-quality part is made of plastic and is sold individually. A screwdriver might be required during the replacement of this item. Over time this part may break and will need to be replaced.