©2026 Johnstone Supply, LLC 12 THE PERFECT COMBO FOR YOUR TRUCK Universal Hot Surface Nitride Ignitor and Flame Sensor Combo Stock the HotRod Combo and be ready to repair the most common furnace failures quickly and easily. Replaces over 150-part numbers! 7599 L51-981 Mfg. #21D64C-843 ElitePRO™ S1200 Smart Thermostat Introducing the NEW NEW Doorbell Integration Built-in support for live video doorbells like First Alert® VX1 or Ring® UWP® Wall Plate Speeds up installs and simplifies future upgrades. Order # SKU Color Stages IAQ Control Price L52-161 THX1200W5/U White 4H/2C for Heat Pump 3H/3C Conventional 2 Humidity, VOC, & estimated CO2 279.99 L52-162 THX1200B6/U Black Critical Parts When You Need Them + Top Supplier Brands + Over 110,000 Searchable Models Log in to access at JohnstoneSupply.com/modeltopart
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