19 Jun What is Radon Gas ? FREE to GBBR Members ! Topic: F 1.5 Hrs. What is Radon Gas ? FREE to GBBR Members ! Topic: F 1.5 Hrs. Wednesday, June 19, 2019 (6:00 PM to 7:30 PM) 1.5 CE Hours GBBR - Baltimore Room, Timonium, Maryland Details You're Registered! DescriptionLocation Instructor: Joe Brandli, Pillar to Post GBBR - Baltimore Room - Baltimore Room GBBR - Baltimore Room (Baltimore Room)1954 Greenspring DriveTimonium, MD 21093 Map & Directions