I had no idea these were supposed to come with GH/KH, my last kit (paid $30~) didn't have it either. Ugh.
Price went up $2 :/
the GH/KH kits dont come with the master kit. in the description it says that it does but i dont think API manufactures the 2 together. there are 7 bottles in the API kit and 4 tubes. pH, high range pH, nitrite, nitrate 1 and 2, ammonia 1 and 2. GH/KH kits are sold separately. so they dont come with it but amazon i guess mistakenly said that they did.