Common Mode Noise Filter – Coax +3 FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz FSB61-3/4-1 $14.95 In stock Quantity: 1 Add to Bag Product Details Initial Permeability (@ 10KHz): 125 Material: NiZn Max cable size - in/mm: .709/18 OD (A) - in/mm: 1.52/38.6 ID (B) - in/mm: .722/18.35 Length (C) - in/mm: 1.87/47.5 Z (ohms per bead - single turn 100 MHz): 360 Z ohms (per bead - single turn 250 MHz): 480 Z (ohms per bead - single turn 500 MHz): 350 Z (ohms per bead - single turn 1000 MHz): 110 Ferrite Snap On, ID = .74 in/18.8 mm, Mix 61 Save this product for later Favorite Typical user comment: The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill