Some folks use swimming pool hoses, I do also. I bought mine at either Lowes or Home Depot, I can not remember which as I looked at both . One has a almost smooth inside the other does mot. I went with the smooth inside. This hose is blue and black on the outside. I have my vac set where it is just strong enough to pull the bees in. I have had tremendous luck with this and have killed very very few bees. I even suctioned a queen once unknowingly and no damage to her either. One more tip. I would suggest using a Pool pole, the one which extends to 16 feet. Good luck
Phillip