Advanced Distributor Products 176799953 Piston R-448A allowing for optimized ventilation and

allowing for optimized ventilation and system balancing

preserving the integrity of thin-walled heat exchanger tubes

This replacement cover is compatible with several Monterey wall furnace models

If the mounting bracket shows signs of metal fatigue

unexpected system lockouts during the startup phase

Advanced Distributor Products 176799953 Piston R-448A allowing for optimized ventilation andThe ADP 176799953 is a precision engineered #53 ton piston designed for reliable refrigerant metering in residential HVAC systems. Also known as a fixed orifice metering device, this genuine ADP replacement part is critical for maintaining the correct pressure drop between the high and low sides of the cooling circuit. Specifically sized for 1. 5 ton R22 or 2 ton R410A evaporator coils, it ensures the optimal flow of refrigerant to maximize heat