Check the listing for details. Eagle Comtronics Tier Notch Traps, B Audio thru I; Part #TW8MBNF-Ba-I. Condition: New. Listed at 12.59 USD. Description: Eagle Comtronics 8-Pole Tier Notch Trap, Channels B(15) Audio thru I(22); Multichannel negative filters block groups (or tiers) of channels from nonpaying subscribers. The trap filters out selected frequencies, utilizing a passband that allows (or passes) the frequencies (channels) purchased by the subscriber and a reject band that blocks the frequencies from subscribers who did not pay for them. By blocking groups of channels, there is no descrambling of signals, eliminating the need for expensive subscriber equipment. Instead, filters are installed outside the subscriber's home, either on the directional tap port at the pole or in a lockbox mounted on the side of the building. The smaller size of the Eagle Elite Multichannel Negative Tier Filters makes these installations a lot easier. Multichannel Negative Filters offer the highest form of protection against theft of services at an affordable cost. Special security hardware is also available for extra protection against tampering with the filter. This item is silver in color, has a cylindrical shape, and measures .75x.75x2.965. *Note- This is a newly posted item. Please take a look at the pictures of the item to make sure it is the product you are wanting to purchase. If you have any questions, contact us and we will do our best to assist you. Thank you for your business! Part #TW8MBNF-Ba-I bb New and Used Items: -All Items listed as new and used are eligible for returns within 30 days -Items must be unused(upon receiving item) and in the same condition it was received -All returns must be in original packaging -Customer is responsible for cost of shipping *Items Listed As "For Parts/Not Working" Are Untested And May Work* *Any Items Sold "For Parts/Not Working" or "AS IS" Not Eligible For Returns*