Norgren excelon bl72 225g combination filter regulator lubricator g1 4 port norgren bl72 225g this pre assembled combination maintenance unit is from the b excelon b range of pneumatic equipment the unit consists of a filter regulator and oiler as well as a pressure gauge the unit is capable of in line or modular installation with other products from the b excelon b range the micro fog lubricator is suitable for most general purpose pneumatic applications and the flow sensor provid