It features a robust bronze body and a reliable thermal element factory-set to discharge at 210°F and 150 PSI

They are the exact same model

What are the mounting requirements for this outdoor bulb shield

P291-2553R

Engineered for precise fitment in specific burner and venting configurations

Heil Quaker ICP 34332903 Limit Switch 318423-701 It features a robust bronzeUpgrade your system restoration with the Heil Quaker ICP 34332903 Limit Switch, a precise OEM replacement furnace part engineered for high demand heating applications. This high limit safety switch features a 3 inch probe insertion depth, designed to monitor internal plenum temperatures with industrial accuracy. Operating with a 170 190? F temperature range, it functions as a critical L190 20F limit control, ensuring the blower assembly and heat