I have a DB Products VHF duplexer in excellent condition for sale. (See pictures) - This duplexer was designed for TX 148.150 and RX 143.900, Right in the middle of the VHF band. It was tuned from the factory at those frequencies and has been untouched. I have included plots for your review. Excellent for a ham repeater and in a nice small package. Asking $475 plus $35 shipping to 48 States. Paypal preferred. Contact Jeff AK6OK at firstname.lastname@example.org or PM me here.