Laars Heating Systems RS2105200 O-Ring 340793-762 Extended Service Life: Prevents corrosion

Extended Service Life: Prevents corrosion on mechanical linkages and actuator seals

System Reliability: Ensures consistent ignition of the main burner across various gas pressures and manifold configurations

It will remain in its last position upon loss of power unless a backup power source is provided

P352PN-2 is identical to P352PN-2C

and the critical J/P19 jumper harness required for proper two-stage HVAC conversion

Laars Heating Systems RS2105200 O-Ring 340793-762 Extended Service Life: Prevents corrosionThe Laars Heating Systems RS2105200 Venturi O Ring is a critical sealing component engineered for high efficiency condensing boilers and commercial water heaters. This OEM replacement part ensures a precise, airtight seal between the venturi and the blower assembly, which is vital for maintaining the correct air fuel ratio during combustion. Specifically designed for the Laars NeoTherm series, these o rings prevent vacuum leaks that can lead to