Johnson Controls T-4000-3141 Plastic Cover often found in standard Lennox

often found in standard Lennox furnaces

Automatic Reset Logic: Features an integrated auto-reset limit switch that restores circuit continuity once safe temperatures are reached

The Watts 0066090 is a heavy-duty 3/4 inch T&P relief valve engineered for critical temperature and pressure protection in water heater and storage tank applications

though effective working limits are often governed by the valve core

warping from over-torquing

Johnson Controls T-4000-3141 Plastic Cover often found in standard LennoxThe Johnson Controls T 4000 3141 is a commercial grade pneumatic thermostat cover designed for horizontal mounting configurations within HVAC control systems. Engineered for T 4000 series thermostats, this white plastic enclosure features a single setpoint window to allow for clear visibility of calibration without compromising the protection of the internal bimetal sensing elements. The unit is designed with a clean, low profile aesthetic featuring