By installing this genuine Williams furnace part

You should verify your specific model number against the parts manual to ensure this elbow matches your collector box configuration

This OEM 5-pack 2amp GlassFastAct selection features a fast-acting glass cartridge design

As a veteran-preferred SPNO & SPNC 120V Relay

Modine 5H0717900000 Relay 30067439-890 By installing this genuine WilliamsThe Modine 5H0717900000 Relay is a mission critical time delay relay engineered specifically for Modine unit heaters. This component serves as the direct replacement for 5H71790, ensuring seamless integration into existing control circuits without requiring field modifications. Designed for precision HVAC blower control, this relay manages the sequence of operation by delaying the fan start up and shutdown cycles. This prevents the heat exchanger from