30W/50W 6 Cavity Duplexer VHF/UHF Repeater Duplexer for Radio Communication Radio Repeater 136-180Mhz/380-520Mhz/400-470Mhz - AliExpress
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Amazon.com: Fumei UHF 400-470MHz 50W Duplexer for Radio Repeater with Preseted Low Frequency 462MHz & High Frequency 467MHz & N Female connectors : Electronics
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Amazon.com: Fumei VHF 136-174MHz 30W Duplexer for Radio Repeater with Pre-Tuned Low Frequency 156MHz & High Frequency 163MHz & N Female connectors : Electronics