Home Avionics GARMIN GTX 345R & GTX™ 345 GARMIN GTX 345R & GTX™ 345 0100121601, 0100121641, 0100177501, 0100121701, 0100177601, 0100121741 SKU: 010-01216-01, 010-01216-41, 010-01775-01, 010-01217-01, 010-01776-01, 010-01217-41 Categories: Avionics, Avionics & Instruments, Garmin, Transponders Tags: GTX 345, GTX 345R