Trane SWT3220 Pressure switch 326010-701 the 1/2-inch bore is sized

the 1/2-inch bore is sized specifically for a 1/2" shaft

while the polarized LED indicator provides immediate visual confirmation of the coil status during commissioning or troubleshooting

making it compatible with most standard residential and light commercial liquid level control systems

Compatible with Johnson Controls V46B and V46C water-regulating valves in various pipe sizes

The Paragon D877-20 Timer is a core component for commercial refrigeration defrost systems

Trane SWT3220 Pressure switch 326010-701 the 1/2-inch bore is sizedThe Trane SWT3220 is an authentic OEM furnace pressure switch engineered to maintain critical safety standards within residential gas furnaces and air handlers. Calibrated at 1. 29" WC (water column), this dual terminal SPST pressure switch functions as a normally open control that proves the draft inducer motor is moving sufficient combustion air through the heat exchanger. It features a universal 1 4 barb connection for seamless pneumatic tubing