About

Johnstone Supply provides wholesale distribution of HVAC, refrigeration, and property maintenance products, including commercial and residential equipment, parts, and installation supplies. The company assists clients with system components, controls, motors, hydronics, plumbing, tools, and ventilation products.

Adhesives, Air Cleaners, Air Conditioning Components, Air Cooled Condensers, Air Distribution, Air Elimination & Vents, Air Filtration, Airflow Measurement, Alkylbenzene, Backflow Preventers, Ball Valves, Baseboard, Batteries, Bearings, Belts, Blends and Specialty Hydrocarbons, Blower Assembly, Blower Wheels, Blowers & Assemblies, Blowers & Draft Inducers, Boiler Accessories, Boiler Trim Kits, Boilers, Books, Brazing & Soldering Supplies, Brazing & Soldering Tools, Cabinet Components, Capacitors, Carbon Monoxide Detectors, Caulking & Sealants, Check Valves, Chillers, Chimney Liner, Circuit Breakers, Cleaners & Chemicals, Coil And Tube Cleaning Tools, Coils, Combustion Analyzers, Commercial Controls, Commercial Single Packaged Units, Compressors & Accessories, Condensate Drain Supplies, Condensate Pans, Condensate Pumps, Condensing Unit Pads & Covers, Condensing Units, Conduit & Fittings, Connected Thermostats, Controls, Cooling Towers, Cord Caps & Connectors, Couplings, Dehumidification, Diffusers, Digital Non Programmable Thermostats, Digital Programmable Thermostats, Drip Shields, Duct Components, Ducting & Sheet Metal, Electrical Components, Electrical Controls, Electrical Installation Supplies, Evaporator Coils, Expansion Tanks, Extension Cords, Fan Blades, Fan Coil Units, Fittings, Flashlights, Fluid Coolers, Furnaces, Fuses, Gas Furnaces, Gas Heat Controls, Gaskets, Gauges, General Purpose Blowers, Generators, Geothermal Units, Grilles, Grounding Rings, Hand Tools, Heat & Energy Recovery Ventilation, Heat Cable, Heat Exchangers, Heat Kits, Heat Pump Controls, Heaters & Furnaces, Hermetic Parts, High Velocity Air Systems, Hose Clamps, Humidification, HVAC Equipment, HVACR Parts, Hydronic Heaters, Hydronics & Plumbing Equipment, Ice Machines & Parts, Ignition Components, Immersion Low Water Cut-Offs, Indirect Storage Tanks, Infrared Heaters, Inspection Tools, Installation & Maintenance Supplies, Installation Accessories, Insulation, Knobs, Ladders, Leak Detectors, Lighting, Line Sets, Line Volt Thermostats, Manufactured Housing, Marketing Materials, Mechanical Thermostats, Meters, Mineral Oil, Mini-Split Systems, Mixing Valves, Motor Accessories, Motors, Motors & Motor Accessories, Mounting Parts, Mounting Supplies, Multi-Zone Systems, OEM Parts, OEM Replacement Draft Inducers, Oil Furnaces, Oils, Outlet Boxes, Packaged Terminal Air Conditioners, Pipe Tapes, Plasma Cutters, POE, Portable AC, Power Tools, Pressure Measurement, Pressure Reducing Valves, Pressure Regulators, Pressure Switches, Pressure Washers, Pulleys & Sheaves, Pumps & Parts, PVE, R134A, R134A Alternatives, R22, R22 Alternatives, R32, R404A, R404A Alternatives, R407C, R410A, R454B, Radiant Heat Systems, Radiator Valves, Receptacles, Refrigerant Accessories, Refrigeration & AC Tools, Refrigeration Components, Refrigeration Compressors, Refrigeration Equipment, Refrigerators & Freezers, Registers, Relays, Relief Valves, Residential Unitary Air Handlers, Reverse Cycle Chillers, Room Air Conditioners, Rope & Tie Downs, Safety, Scroll, Semi-Hermetic, Shafts, Sheet Metal Machinery, Single Zone Systems, Smoke & CO Alarms, Software, Specialty Evaporative Coolers, Specialty Test Instruments, Speed Controls, Split Systems, Starters, Steam Parts, Supplies, Switches, System Components, System Treatments, T&P Valves, Temperature & Humidity Measurement, Terminals & Connectors, Test Instruments, Testing, Tools & Training, Thermostats, Thermostats & Sensors, Through the Wall Condensing Units, Tool Storage, Tools, Total Home Systems, Training, Ultraviolet, Unit Coolers, UV Leak Detectors, Vacuums, Valves & Controls, Variable Capacity Systems, Vent, Ventilation & IAQ, Venting Materials, Vertical Packaged Units, Wall Plates & Covers, Water Coolers, Water Feeders, Water Filtration, Water Heaters, Whips, Wire, Wiring Accessories, Zone Valves, Zoning