Package Quantity: 1/Pkg Active Ingredient: Tetrachlorvinphos (14.55%), (S)-MEthoprene (1.02%)
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  • Begins to kill fleas, ticks and flea eggs and larvae immediately and lasts up to 7 months
  • Wetting will not impair the collar;s effectiveness or the pet's protection
  • May be worn with pet's regular collar
  • Contains Tetrachlorvinphos - an Organophosphate insecticide which inhibits acetylcholinesterase and posions the nerves of flea and ticks
  • Contians (S)-Methoprene - a juvenile hormone analog which prevents flea egss and flea larvae from maturing into adult fleas

Active Ingredient: Tetrachlorvinphos (14.55%), (S)-MEthoprene (1.02%) Package Quantity: 1/Pkg Delivery Type: Topical