this is a specific OEM venting component manufactured by Lennox

the switch is red color coded for rapid field identification

This model is designed for brackets with clip-style retention

The Carrier 32GB403154 is a precision-engineered 90-ton electric standard expansion valve designed for high-capacity commercial HVAC maintenance and chiller applications

Supco SLP2045 Pressure Switch 321894-706 this is a specific OEMThe Supco SLP2045 Pressure Switch is a high precision, encapsulated low pressure control engineered for standard HVAC and refrigeration system protection. This single pole single throw (SPST) switch is designed to open on pressure drop at 20 PSI, preventing compressor operation during low charge conditions or evaporator freeze ups, and features an automatic reset that closes at 45 PSI. For efficient field installation, it includes a 1 4" SAE 45 female