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HM-648 Heater/Circulator provides highly accurate temperature control to ±0.09°F (0.05°C) for fluid tanks and baths up to 7.4gal (28L)¹ from ambient + 9° to 302°F (ambient + 5° to 150°C). Heating capacity also easily controls temperatures for most larger concrete curing tanks to specified levels. Temperature range and stability for large tanks is dependent upon tank volume, surface area and ambient temperatures. The PID controller features a LED display that reads out in °C or °F, adjustable overtemperature protection and low-liquid level cut-off. A two-speed circulator switches from 2.4 to 4gpm per minute (9 to 15L) to adapt to a wide range of tank sizes and types. All contact parts are stainless steel. The 1,100 Watt, 7.5in (191mm) long coiled heating element requires only 3in (76mm) immersion, ideal for shallower tanks.1/2in ID tubing can be attached to the adjustable flow director for external circulation. The Circulator clamps to tank walls up to 1.2in (30.2mm) thick. Two-year manufacturer’s warranty. Supplied with a 6ft power cord with grounded plug..
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