Armstrong 57M67 Furnace Pressure SwitchArmstrong 57M67 Furnace Pressure Switch is a dependable furnace pressure switch designed to protect your heating system. This type pressure switch acts as a critical safety control, confirming venting and burner operation before the furnace ignites. Used on many furnaces, the Armstrong 57M67 serves as a reliable replacement part for standard HVAC equipment. Crafted for durability and easy installation, this pressure switch is designed to meet typical

this view port is ideal for models BTH

rugged construction

Simple installation with standard mounting holes and lead connections

This robust gas valve is engineered for smooth operation

Nominal size: 1-1/2 inch

Designed for easy integration in residential or commercial hydronic circuits

the head mechanism monitors water level and drives the pump controller to prevent low-water conditions

Armstrong 86M36 is a high-pressure switch engineered for demanding industrial environments

and M1M-C/D units (056

it fits within typical air handler compartments

Key specs include a compact footprint: 3

easy-to-install link between pump components