Trane FLR7963 Expandable Filter Els PW 17895 compatible with most thermostat and

compatible with most thermostat and relay outputs

Foaming usually indicates an air leak at the suction point

the KH-AFB or KH-10 models are more appropriate

utilizing a durable metal housing that withstands the harsh environment of the burner compartment

Trane FLR7963 Expandable Filter Els PW 17895 compatible with most thermostat andAs a field technician, you know that keeping a systems static pressure within spec is critical for blower motor longevity. The Trane FLR7963 is the OEM replacement air filter specifically engineered for the PerfectFit enclosure. Unlike standard flat panel filters, this 5 inch expandable media utilizes a deep pleated synthetic design to maximize surface area and minimize airflow resistance. This is the direct replacement for FLR6232 (and supersedes