Honeywell 191990A Replacement Key for Use with TG511 and TG512 Thermostat Guards Cover Thermostat Nav Test Protects HVAC systems from contaminants

Protects HVAC systems from contaminants

MPN: 4295-36

Durable build for reliability

The Honeywell RC840T-120 is an electric heat relay designed for optimal temperature management in heating systems

Weight: 64 lbs

Honeywell 191990A Replacement Key for Use with TG511 and TG512 Thermostat Guards Cover Thermostat Nav Test Protects HVAC systems from contaminantsProduct Description The Honeywell Replacement Key, MPN 191990A, is designed for use with TG511 and TG512 thermostat guards. This replacement key is essential for accessing and adjusting the settings of thermostat guards to ensure proper functioning of your HVAC system. Compatible with TG511 and TG512 thermostat guards Essential for thermostat guard access Durable construction for long lasting use Product Highlights This product helps maintain your