Laars Heating Systems RL0052300 Burner Kit 321042-401 What is the difference between

What is the difference between the silver and other color-coded Spence springs

the poppet-style internals provide superior resistance to media contamination compared to standard spool valves

the DPST switching mechanism and high dielectric strength provide the durability required for definite purpose contactor troubleshooting and long-term performance in demanding motor and heating applications

5 mm diameter

Due to its 40

Laars Heating Systems RL0052300 Burner Kit 321042-401 What is the difference betweenThe Laars Heating Systems RL0052300 Burner Kit is a critical 10 pack of OEM replacement burners designed for high performance residential and commercial hydronic systems. Engineered for precision, these Main Burner Kit components ensure consistent fuel to air combustion ratios, preventing energy waste and stabilizing heat exchange across the manifold. These burners are specifically compatible with Laars Mighty Therm models, including the HH, PH, VW,