Lennox X4138 Pre-Filter R-22 which helps prevent leaks and

which helps prevent leaks and optimizes overall heating and cooling distribution

this 1050 RPM motor is built on a standard 48 frame platform

When performing a compressor retrofit or replacing a failed unit

Manufactured to the original rigorous standards

Lennox X4138 Pre-Filter R-22 which helps prevent leaks andThe Lennox X4138 Pre Filter is a critical OEM replacement component engineered for high performance HEPA bypass air filtration systems. Specifically designed for compatibility with Lennox Healthy Climate HEPA 40 and HEPA 60 units, this 15 inch carbon pre filter acts as the first line of defense in a three stage purification process. By capturing large diameter airborne particulates and debris, it prevents premature loading of the primary HEPA