Common Mode Noise Filter – Coax +3 FSB61-1/4, ID=1/4", RFI Range 200-2000 MHz, Bulk pack of 10 FSB61-1/4-10 $34.95 In stock Quantity: 1 Add to Bag Product Details Initial Permeability (@ 10KHz): 125 Material: NiZn Max cable size - in/mm: .25/6.3 OD (A) - in/mm: 1.22/14.3 ID (B) - in/mm: .26/6.6 Length (C) - in/mm: 1.55/39.4 Z (ohms per bead - single turn 100 MHz): 230 Z ohms (per bead - single turn 250 MHz): 355 Z (ohms per bead - single turn 1000 MHz): 420 : 10 : 4.95 Ferrite Snap On, ID = .26 in/6.6mm, Mix 61, Bulk pack of 10 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