List of Johnstone Supply Stores in Halethorpe, MD Outlet Note Regular Brands Johnstone Supply Maryland Halethorpe Rating 5 based on 75 votes Products Tools Supplies HVAC Equipment HVACR Parts Motors Refrigerant NameAddressPhone Name/Address/Phone Johnstone Supply outlet - Halethorpe 1656 Sulphur Spring Rd (410) 568-7390 People Also Viewed