Laars Heating Systems RE0015900 Aquast 30067439-890 such as the V4043 or

such as the V4043 or V4044 series

this pilot burner spark electrode ensures reliable ignition cycles by maintaining fixed gap tolerances and thermal resistance

providing the durability needed for high-pressure commercial environments

where preventing refrigerant migration and pressure loss is paramount

As a 5-10 PSI bare actuator

Laars Heating Systems RE0015900 Aquast 30067439-890 such as the V4043 orAs a veteran HVACR technician, I know that maintaining the integrity of a high limit safety circuit is non negotiable. The Laars Heating Systems RE0015900 High Limit Aquastat is an OEM spec manual reset temperature control designed specifically for hydronic boilers and volume water heaters. Operating within a 100F to 225F temperature range, this component acts as the final line of defense, breaking the burner circuit if the operating control fails or