Weil-Mclain 383-600-069 Low Water Cut-Off — Fits Ultra Commercial / Slimfit & WM97+ Boilers (Models 70, 110 & 155)

Replacement low-water cut-off 383-600-069 from Weil-Mclain, made for use with Ultra Commercial, Slimfit and WM97+ boiler families. Compatible specifically with model numbers 70, 110 and 155, this safety device stops boiler operation if water level drops below safe limits to help prevent damage. Designed as a direct-fit part for the listed boilers to restore proper low-water protection and reliability.