REXHD1824411

The Endurex HD pleat is constructed with the heaviest high wet-strength board frame, 2x thicker wire, and 100% synthetic media for demanding applications and providing the longest service life available.

Benefits and Applications:
MERV 9/9A to protect coils and ductwork
Maximum service life
Lowest Resistance to airflow
Turbulent Airflow Systems
Heavy Loading
High Flow Rate
Extreme Weather Conditions
High Moisture Units
Long Life Desired

Case Size: 6
Nominal Size: 18” x 24” x 4”
Actual Size: 17.50” x 23.50” x 3.75”
Airflow (cfm): 1,500
Face Velocity (fpm): 500
Initial Resistance (inches W.C.): 0.15
Recommended Final Resistance (based on energy consumption) 0.38
Max Final Resistance: 1.2