advantage multi for dogs 3-9 lbs heartworm fleas

advantage multi for dogs 3-9 lbs, this is for heart worms, roundworms and fleas. I had bought the 6pak for my puppy back in October, he has used 4 applications, he is now 15 lbs. I still have two applicators (once-a-month topical solution) left in this box. Expiration August 2019. I am selling both sealed applicators for $20.