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The 20163801 is the current production standard and serves as the functional and dimensional replacement for the older 20163801S designation
High Compatibility: Validated for use across multiple Re-Verber-Ray heater lines including the LS
depending on specific pressure drop requirements
the 20-707 is identical to the 10-53
Johnson Controls A19AAF-12 Temperature Control 30067439-890 The 20163801 is the currentThe Johnson Controls A19AAF 12 is a robust mechanical temperature control engineered for high performance heating and general purpose HVACR applications. Built with a single pole double throw (SPDT) switch configuration, this remote bulb controller delivers precise temperature regulation across a broad 25 to 225? F setpoint range. The unit features an automatic reset mechanism and a 3. 5? F fixed differential, ensuring consistent cycling and system
