Combination Aquastat and High Limit Controller, 7 Degree ± 4 Degree Differential Temperature, 2 1/4" Insulation Depth, 3/4" NPT Well Spud Size, SPST Contacts Break on Temperature Rise, Mounts on a Horizontal Immersion Well in Water Heater Wall, 100-240 Degree Operating Temperature Range, Stop Set at 150 Degree

VACUUMSTAT OPEN-RIS 22"VAC-35#