it maintains its spring rate and linear tension across varying ambient temperatures

it is a universal electric heat sequencer designed to replace common 1-switch models in a wide range of electric furnace brands using 24V control circuits

Exact OEM Replacement: Direct substitute for Rheem 42-19423-02 and 42-21571-02

Simple Maintenance: The non-lubricated design eliminates the frequent service intervals required by grid or gear-style couplings

While standard cores focus on moisture and acid

BASO J999MDA-2 Pilot Burner it maintains its spring rateThe BASO J999MDA 2 Pilot Burner is a high performance universal replacement pilot burner designed for standing pilot applications in residential and commercial gas fired equipment. Engineered as a direct match for the J999MDA 2H, this unit features a precision machined #9 tip arrangement that ensures a stable, consistent flame pattern for reliable main burner ignition. This J Series pilot assembly is compatible with both natural gas and liquid propane