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while the stainless steel spring maintains consistent set-point accuracy
Full Retrofit Package: Includes all necessary brackets
Installation Efficiency: 1/4" sweat connections with extended ends facilitate fast installation in both vertical and horizontal orientations
and housing are factory-set
Tjernlund Products EF-12 Duct Fan R-407A while the stainless steel springThe Tjernlund Products EF 12 Duct Fan is a heavy duty 12 inch inline booster fan engineered for professional HVAC applications where airflow velocity is critical. Built with a 24 gauge galvanized steel housing, this axial fan is specifically designed to overcome static pressure in long duct runs, delivering a free air rating of 875 CFM. It features a 1 35 HP shaded pole motor operating at 1500 RPM, optimized for maintaining air movement in both 12"
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