Aprilaire 213 Filter 320819-301 The manual reset ensures that

The manual reset ensures that the system cannot restart after a critical high-pressure event until a technician investigates and clears the cause of the failure

Always verify the 1/4" bore and CW rotation against your existing motor shaft before installation

If an analyzer detects CO in the supply air or you observe a rolling flame during the blower start-up

The 233-40261-03 is designed for "old style" residential atmospheric models

it supports efficient motor cooling and prevents premature blade failure due to impact

Aprilaire 213 Filter 320819-301 The manual reset ensures thatThe Aprilaire 213 Filter is a high performance MERV 13 air filter designed to optimize indoor air quality for residential HVAC systems. Featuring patented Self Seal Technology, this genuine Aprilaire replacement filter minimizes air bypass, ensuring that nearly all circulating air passes through the pleated filter media. Engineered for a 20x25x4 nominal size, it effectively captures 93% of airborne viruses and 99% of common triggers like pollen, mold