The Hankison E1-48 is a Class 1 (high-efficiency) filter element in the Hankison HF series compressed air precision filter. Model E1-48 is suitable for handling flow rates of approximately 22 CFM (approximately 0.57 m³/min), with a filtration accuracy of 0.01 μm and residual oil content ≤0.001 ppm (w/w). It is a multi-stage deep fiber media filter element used in ultra-clean compressed air applications.