100289450 is the official direct replacement for 100288891

including the GCS24

As a 2-speed motor

This L130-25F manual reset limit switch is engineered to interrupt the electrical circuit when internal plenum temperatures reach the 130°F cutout threshold

Resideo V8043A1037 Valve 326058-758 100289450 is the official directThe Resideo V8043A1037 Valve is a professional grade, 2 way normally closed zone valve engineered for precision hydronic control in closed loop systems. This 1 inch sweat connection zone valve features a robust brass body and stainless steel stem, designed to withstand fluid temperatures from 50F to 200F. Operating on a 24Vac hydronic valve actuator, it utilizes a spring return to close mechanism with a 3. 5 Cv flow capacity and a 20 psi maximum close