The E3H2 is electronically identical to the 1309A0039 sensor

using it in non-compatible systems may lead to premature failure or safety hazards

having this OEM HVAC replacement part on the truck is essential for resolving short-cycling or thermal cutout issues in residential air handlers and furnaces

housed in a durable aluminum case

Aprilaire 313 Media Freon The E3H2 is electronically identicalThe Aprilaire 313 Media is a high performance MERV 13 air filter designed to optimize your indoor air quality by capturing 93% of airborne viruses and 90% of common allergens. This Aprilaire 313 replacement filter features a deep pleated design that offers a significantly larger surface area than standard 1 inch filters, ensuring whole home air filtration without restricting airflow in your HVAC system. Engineered with patented Self Seal technology,