Any propane suppler carry's large propane tanks. Tractor supply does carry regular size grill tanks and I've seen some locations with larger 4 to 5 ft tall tanks. I'd call ahead. They'll gladly let you know what they have in stock
What type of tanks?
I'm not sure if Tractor Supply has large tanks for a camper. If you are referring to propane tanks I would recommend a place that sells campers or camping equipment like the RV place in Raynham, Mass on route 44 or the place on route 2 in Warwick, RI.
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