Overview:
The Innotek SD-3125 SD-3125 Replacement Contain 'N Train Collar Receiver is a replacement collar for the Innotek Contain 'N Train systems. Also works with the SD-3000, SD-3100, CT-400A, and CKC-25W. Does not work with IUC models.

Features:

• The SD-3125 is a replacement collar for the Innotek Contain 'N Train systems. Also works with the SD-3000, SD-3100, CT-400A, and CKC-25W. Does not work with IUC models.
• Water resistant.
• Adjustable nylon collar.