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FieldTrainer® 425X/SportHunter® 825X Add-A-Dog® Collar

The Collar Receiver for FieldTrainer® 425X, SportHunter® 825X and SportTrainer™ 575E/875E Remote Trainers. Add another dog to your current SportDOG Brand® electronic training collar system or replace a Collar Receiver with the SDR-AFX Add-A-Dog® Receiver Collar.
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