SportDOG SD-825/1225/1825/3225 Replacement Antenna - Replacement transmitter antenna. SportHunter 825 (SD-825), 1225 (SD-1225), 1825 (SD-1825) SportTrainer 875 (SD-875E), 1275 (SD-1275E) WetlandHunter 1825 (SD-1825CAMO) HoundHunter 3225 (SD-3225)...