What is the difference between SEC99AA-48 and SEC99AA-48C

Can I use Sil-Fos 5 on ferrous metals like steel or iron

This heavy-duty fan blade is built to withstand the thermal stresses of commercial heating environments

because the immersion well acts as a physical barrier between the sensor bulb and the system fluid

Vibration is typically caused by improper sheave alignment or worn grooves

Heil Quaker ICP 1175187 Gas Valve 30067439-890 What is the difference betweenThe Heil Quaker ICP 1175187 is a high performance 2 stage DSI gas valve engineered for precision fuel regulation in residential and commercial ICP heating systems. More commonly recognized by its White Rodgers 36H54 470 manufacture number, this OEM replacement gas valve is a direct spark ignition (DSI) component designed to manage manifold pressure across low and high fire stages. For technicians performing a furnace gas valve replacement, this unit