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Honeywell CG511A1000 Medium Thermostat Guard with Inner Shelf to Prevent Tampering

Plastic

Fits all Honeywell and most other thermostats

Clear plastic cover that resists yellowing

Key lock with inner shelf to prevent tampering

Protects unwanted changes to AC/heating preferred settings

Ultra clear acrylic resin cover and base resists the yellowing effects of chemicals and UV-light