FS - one each Model 285 500Hz 8 pole cw filter for 6.3MHz IF in Corsair I&II and OMNI V, VI & VI+ Model 217 500HZ 8 pole cw filter for 9MHz IF in Orion I, Corsair I&II, OMNI V, VI & VI+ $60 each including Priority Mail to lower 48, $110 for pair including Priority Mail to lower 48 Terry N4TZ N4TZ at ARRL.NET