Sorry in advance if this sounds confusing, but what you can do is go get a smaller diameter hose that's fits over the firing then slide the larger hose over that hose. So in essence you will have two hoses on there and then secure them with a house clamp. That is what worked for me. Ace is the prefect place to go, when you need help with small issues like this especially if they have a good person helping. We have an older gentleman named Mr. Charlie probably near 70 years old! Good luck!