Respa CFX H13 Recirculation Extension Housing Kit Include Filter

Use as an extended-length filter housing replacement service part, or as a filter extension kit for RESPA-CFX/FF/FFX. As an upgrade from standard length filter housing, it allows for increased filter life and roughly 10 CFM of additional airflow. Adds 5 inches to the overall length of the unit. HEPA extended length closed filter is included.