Check your specific Maxitrol spring selection chart to ensure the physical dimensions match your regulator's internal tower

the Lennox 79J08 is specifically calibrated for the pressure curves of R22 systems

OEM Compatibility: Designed exclusively for Nordyne and Miller furnace series

Installing a backflow preventer creates a closed system

Using a switch with a different WC rating can lead to unsafe combustion conditions or frequent nuisance trips

Amana-Goodman OT18-60A Thermostat Els PW 17895 Check your specific Maxitrol springThe Amana Goodman OT18 60A is a critical outdoor thermostat for heat pump applications, functioning as the direct OEM replacement for legacy part numbers B13708 67, B1370867, and B1370867S. This field installed accessory utilizes a Single Pole Double Throw (SPDT) switch to provide precise control over auxiliary heat lockouts or compressor staging based on ambient temperatures. With an adjustable temperature range of 0F to 45F, it prevents inefficient