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Hartz
Hartz Flea & Tick Collar 1 ea
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Easy Activation: To activate collar, hold at each end, stretch, and it's ready for your dog to wear. Read entire label before each use. Use only on dogs. It is a violation of Federal law to use this p…
Contains an organophosphate that inhibits cholinesterase; contains tetrachlorvinphos (an organophosphate), which is a cholinesterase inhibitor
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