making it suitable for large-scale HVAC damper actuators and heavy valve assemblies

Durable Construction: Housed in a rugged

integrating tamper-resistant bonnet screws and a non-mechanical seat-to-disc alignment for reliable

Durability: Engineered to withstand the high-cycle demands of commercial differential pressure monitoring

System Versatility: Fully compatible with both hot water systems and two-pipe low-pressure steam applications up to 15 psig

Laars Heating Systems R0457501 HSI 318973-401 making it suitable for large-scaleThe Laars Heating Systems R0457501 HSI is a high performance silicon carbide hot surface ignitor engineered specifically for Jandy Legacy LRZE and Teledyne Laars pool heaters. For technicians servicing LRZ models 125, 175, 250, 325, and 400, this OEM component is the standard for restoring reliable ignition sequences. Unlike generic alternatives, this pool heater ignitor is designed to handle the high temperature environment of the burner assembly