Johnstone Supply

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Johnstone Supply distributes heating, ventilating, air conditioning and refrigeration (HVACR) products. The catalog spans HVAC equipment, HVACR parts, hydronic and plumbing products, as well as motors, electric supplies and a full range of installation and maintenance items. Customers can also source testing instruments, tools, training books, software, thermostats, ventilation solutions and indoor‑air‑quality equipment. Refrigeration offerings include air‑cooled condensers, chillers, condensing units, cooling towers, fluid coolers, ice machines and their components, plus refrigerators, freezers, unit coolers and water coolers. The air‑conditioning line features accumulators, receivers, capillary tubing, condensers, evaporators, defrost heaters, evaporative‑cooler parts, expansion valves, filter‑driers, oil‑control products, refrigeration valves, regulators, relief valves, sight glasses, moisture indicators, solenoid valves and vibration eliminators.

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