List of Johnstone Supply Stores in Merced, CA Outlet Note Regular Brands Johnstone Supply California Merced Rating 5 based on 75 votes Products Tools Supplies HVAC Equipment HVACR Parts Motors Refrigerant NameAddressPhone Name/Address/Phone Johnstone Supply outlet - Merced 1755 Grogan Ave, #A (209) 386-1000 People Also Viewed