ZEP 32-1968CV Flying Insect Repellent/Odor Kit Country Vet Flying Insect, And Odor Kit This Kit Includes Wall Dispenser, 1 Metered Fly Spray, And 1 Metered Air Freshener Provides 30 Days Of Control Of Insects, As Well As 30 Days Of Odor Control Dispenser Activates Every 15 Minutes, And The Effectiveness Of This Product Will Be Noticeable Within One Hour After The Dispenser Is Activated Product Contains Highly Effective Insecticide